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Could not connect to Microsoft Outlook : error -2146959355

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Could not connect to Microsoft Outlook : error -2146959355 Philippe_Segers 2/17/09 5:20 AM
I Could not connect to Microsoft Outlook and I get this error message:
"Could not connect to Microsoft Outlool : error -2146959355"
I use XP with Outlook 2007 and my account in Outllok is not the same as my ggogle account.
Re: Could not connect to Microsoft Outlook : error -2146959355 AzTex2 2/25/09 8:26 PM
I'm having the same issue as Philippe_Segers.  I know this is OpenWare...yet coming from Google, I'd hoped for a little better performance from the deployed services. I'm running Vista Home Premium 32 bit, 2 gig RAM & all updates on board.  This is annoying, considering all the shots taken at MS...Outlook still works pretty much flawlessly. 
Re: Could not connect to Microsoft Outlook : error -2146959355 August Staas 3/4/09 7:25 PM
I'm having the same problem when I try to sync Google Calendar with Outlook.  I have no idea what to do to resolve this problem. 
Re: Could not connect to Microsoft Outlook : error -2146959355 The Baldchemist 3/9/09 5:59 AM
Why on earth would you want to? Use Gmail.
Re: Could not connect to Microsoft Outlook : error -2146959355 rugmankc 3/17/09 7:45 PM
I have the same problem and have done significant research with no answer.  I would like to import my Outlook Calendar into GCalendar then do OTA syncs to my Blackberry. Even when I was just using the BB and some single test items on the GCal there were still errors with the syncing. I.E. a note from Wed on by BB being synced to a Tue on Gcal. Outlook and my BB are flawless through Desktop Manager as AzTex2 said. But would still like to experiment with the OTA syncing. If I can't resolve this issue, Google products are dead to me.

I have read all troubleshooting tips and reduced the size of my Outlook Cal by shortening the end dates from never to 2028. Those longer dates are for personal and financial events. Maybe calendar is too big or maybe I am missing a .dll file from some registry cleaning. I don't know, but the code gives no secific info.  The one sugesstion I found involved changing the registry, but was for a different problem.  I am at a loss.

By the way, I have looked at these Google forums and see little helpful response from other users and Google employees, unless they are promoting a new product/feature. Although, I cannot look at all the posts, this is my initial conclusion.

Anyone out there resovle this specific error (2146959355)?



Thanks.

Ken
Re: Could not connect to Microsoft Outlook : error -2146959355 ilyapl 3/22/09 6:03 AM
I also can't conenct , using outlook 2003. Google calendar is not connecting to outlook. with this # ed error.
Re: Could not connect to Microsoft Outlook : error -2146959355 GeronimoSun 3/22/09 7:57 AM

I suffered a similair problem I had an MS live-account with google maps and google calender. Yesterday I tried to login with my live.nl account and suddenly I got a communicationscreen from google telling me I had to change my live-account into a gmail account. I couldn't login with the live.nl account anymore so I thought no problem I'll change the live.nl account into Gmail.com.

Now I just lost all the information I had into my Live.nl account on maps and the calender. For me it is very valuable information I lost and I espected to find the information in the gmail calender account but it just isn't there.

I tried to contact google because I have to get acces this information fast but they still didn't answer me.

I think it will be a crying shame if this information is lost forever so I just hope the best and I will not settle for less than a complete restitution.
Re: Could not connect to Microsoft Outlook : error -2146959355 amadeumail 3/22/09 11:24 AM
Me too same error. and no solution - another problem.
Re: Could not connect to Microsoft Outlook : error -2146959355 jbrix 3/22/09 11:34 AM
The fact is that the sync to Outlook operation worked for weeks without a flaw.  And then all of sudden it didn't - and the "Cannot sync to Oulook - error 214xxxxxxx.  This was about the same time that Google started offering an "updated" or "upgraded" sync program.  But I never accepted the offer - unless is snuck in on its own.  Just to verify - I installed the sync program on another computer with the same version of Outlook (2003.)  Same result.  Only conclusion - Google has made some change in the software that has caused the sync operation with Outlook to fail.  Please give us back what worked so well for so long.
Re: Could not connect to Microsoft Outlook : error -2146959355 cvjones57 3/26/09 12:58 AM
I began receiving the error message referred to in these posts. After reading the messages, I feel very discouraged about Google's lack of response. I have never had a negative experience with Google. Now, I wonder what I can do to get into Outlook (I get the error message when trying to open Outlook under Vista). This thread does not bode well for users like me.
Re: Could not connect to Microsoft Outlook : error -2146959355 NomadCF 3/26/09 9:35 AM
Ok Fixed it (thanks to the help of a process & registry monitor.

1. Close outlook completely (or reboot and don't open it)
2. Backup your systems registry
3. open regedit (if you haven't already)
4. Goto / Fallow this path => HKEY_CLASSES_ROOT\TypeLib\{00062FFF-0000-0000-C000-000000000046}
5. Delete the and only THE Key "9.3" or just rename it 
6. close regedit
7. reopen outlook and try to sync. 

This fix "fixed" all my affected PC 
Re: Could not connect to Microsoft Outlook : error -2146959355 phinney 4/7/09 12:45 AM
I tried the fix suggested by "NomadCF," but I have no key named "9.3" in that location - just the default key, with no data.
Re: Could not connect to Microsoft Outlook : error -2146959355 bassmasterbruce 6/15/09 2:03 AM
NOMADCF, you're a star.
Re: Could not connect to Microsoft Outlook : error -2146959355 winecurmudgeon 6/16/09 4:56 AM
This problem is not unique and does not appear to be have one specific fix. I think it has to do with how Sync contacts Outlook and the variations caused by the different Windows operating systems. I'm running Outlook 2007 on 64-bit Vista Home Premium (each completely up to date). The first time I tried to run Sync, I got the 214 error message. I did all the fixes suggested here, and nothing worked.

Finally, I rebooted the system and opened Outlook as the administrator and only after Sync loaded. Lo and behold, Sync then worked. In my case, I think the error was caused by Sync asking for permission from Outlook, and not getting it because I had opened Outlook as a user and not as an administrator. The Vista User Account Control system is not one of Microsoft's brightest ideas, and that's saying a lot.

I wouldn't expect much help from Google. It sells advertising, and the software development it does revolves around selling advertising.
Re: Could not connect to Microsoft Outlook : error -2146959355 jyjohnson 7/21/09 9:25 AM
winecurmudgeon solved my issue --- once I set both Outlook and G Sync to run as Administrator, it worked.
Re: Could not connect to Microsoft Outlook : error -2146959355 apopovsky 8/4/09 11:53 AM
winecurmudgeon solution worked for me. Started both apps as Admin and the sync worked.
Re: Could not connect to Microsoft Outlook : error -2146959355 shswanson 8/15/09 7:53 PM
I did all of the above and it still wasn't working for me. I tried installing another sync program and it gave me a more specific error. When I deleted 9.3 in the HKEY_CLASSES_ROOT\TypeLib\{00062FFF-0000-0000-C000-000000000046} it defaulted to the other registry entry: 9.4. That 9.4 entry pointed to C:\Program Files\Microsoft Office\Office14\msoutl.olb, which didn't exist in that directory. I did a search of my computer and found the file here: C:\Program Files\Microsoft Office\Office14 - I copied the file to where it was looking for it, rather than changing where it was looking for it. Not sure if that was the way to go or not, but it worked...
 
6 hours well spent, perhaps not, but at least it ended in a success!
Re: Could not connect to Microsoft Outlook : error -2146959355 hfor 8/28/09 1:11 PM
I too tried all of the above, besides winecurmudgeon's suggestion with no success.  I don't have admin permission on my work system (annoying policy) so I guess I'll just have to let this go.

winecurmudgeon, let me see if I understand your solution correctly?  I must be able to run Outlook 2007 as an admin every time, correct?

I'm running Outlook 2007 on WinXP .
Re: Could not connect to Microsoft Outlook : error -2146959355 Francesco891 9/16/09 2:46 PM
In Windows VISTA the only solution is the solution presented by winecurmudgeon.
Re: Could not connect to Microsoft Outlook : error -2146959355 Jorgesun 9/17/09 10:13 PM
winecurmudgeon  Thanks, your solution works for me...

Regards!
Re: Could not connect to Microsoft Outlook : error -2146959355 dakibrest 10/6/09 12:10 PM
nomadCF you are the MAN!!! thx!!
Re: Could not connect to Microsoft Outlook : error -2146959355 cameronpowell 11/3/09 2:27 PM

This worked for me!  Thanks for nothing Google.  It's all about NomadCF.

For people less technically skilled (like me), here’s a shortcut to carrying out steps 2 and 3 of the helpful instructions of NomadCF, above.

Back up your registry:  http://support.microsoft.com/kb/322756

Open regedit:  http://www.ehow.com/how_11825_open-windows-registry.html

Re: Could not connect to Microsoft Outlook : error -2146959355 jimerman 11/19/09 8:23 AM
OK, here's what I did unsuccessfully:

1. Uninstall Google Sync
2. Rename the Outlook 12.0 Object library key in the registry (HKCR / TypeLib / {...} / 9.3)
3. Reinstall Google Sync - even tried changing the sync to 1-way instead of 2-way
4. Restart Sync / Outlook

So, that DID sync ONCE "successfully" - what I mean is, no error dialog, but sync didn't actually push the calendar entries.  The strange thing is, it was working great for weeks.  I think there must be some size or time limit on Google Calendar Sync.  Too bad!  I'd rather use that than Outlook to push to my iPhone.
Re: Could not connect to Microsoft Outlook : error -2146959355 coonj 11/20/09 9:29 AM
Same thing is happening to me. Started last night, and recreating the registry entry does not solve the issue.
Sounds like @jimerman got this issue at the same time as I did.... coincidence, or not?
Re: Could not connect to Microsoft Outlook : error -2146959355 BradsMorris 11/20/09 10:09 PM
I am running Win7 Pro with Google Calendar and Sync.
to fix my problem I first loaded Outlook 2007 in Safe Mode.
I then went to my system tray  (dont know what they call in in Win 7(!) and saw that the Google Sync was running (and running and running)
I stopped it.
Checked several msgs in outlook and then went back to Google sync and told it to sync and it started working again.
Hope this helps someone.
 
Re: Could not connect to Microsoft Outlook : error -2146959355 Kevin Talbot 11/27/09 12:07 PM
I'm using XP Pro SP3 and Office 2003. I recently installed the Office 2010 beta and sync stopped working and gave me this error message every time Google calendar sync tried to sync on the PC.

BTW, the office 2010 beta is slick (worth the download!). I chose the option to keep my office 2003 versions in place (an option on the install program), but Outlook 2010 and Outlook 2003 can't coexist at the same time, so i opted to skip Outlook 2010 and keep Outlook 2003 (all the other 2010 apps leave peacefully with the 2003 versions). I did not want to risk going to Outlook 2010 with no easy way to fall back to Outlook 2003 if there were glitches.

I read this thread and dug through my registry. I only had branches for "9.2" and "9.4" (no 9.3). I did see in the data for the key in "9.4"  referenced "Office 14" which is the new 2010 Beta. Since I did not opt to install Outlook 2010 I thought this might be the problem. In regedit I renamed the key "9.4" to "Old_9.4". I then shutdown Outook 2003, and Goggle sync and restarted both and the problem is gone. I now am able to sync fine again.

- Kevin
Re: Could not connect to Microsoft Outlook : error -2146959355 Dutch55 11/29/09 2:59 PM
I started receiving the Google Calendar Sync error -2146959355 "Could not connect to Microsoft Outlook".
 
This occured after installing and removing Office 2010 Beta 64bit and re-installing Office 2007 32bit.  Thanks to NomadCF suggestions, I removed Google Calendar Sync, used regedit.exe to edit the registry, navigated to HKEY_CLASSES_ROOT\TypeLib\{00062FFF-0000-0000-C000-000000000046} and deleted the registry keys 9.3 and 9.4.  I then re-installed Google Calendar Sync, opened Outlook, and Google Calendar Sync now  works.
 
Note that to upgrade from Office 2007 32bit  to Office 2010 64bit, you have to completely remove all of Office 2007, so keeping Outlook 2007 and installing the other Office 2010 applications does not appear to be an option.
 
This worked on two computers.
Re: Could not connect to Microsoft Outlook : error -2146959355 coonj 11/30/09 10:30 AM
This worked for me:

1. Close Outlook
2. Close Google Sync
3. Delete all nodes under TypeLib\{...0046}
4. Reinstall Google Sync
5. Load Outlook
6. Open Google Sync and re-enter login info, and press Save
Re: Could not connect to Microsoft Outlook : error -2146959355 janecottrell 12/22/09 1:28 PM
NomadCF, in regedit at HKEY_CLASSES_ROOT\TypeLib\  I have only these two types: REG_SZ and REG_BINARY. No TypeLib. What to do?
Re: Could not connect to Microsoft Outlook : error -2146959355 Esben Sjælborg Jensen 1/11/10 12:43 PM
I have the same problem as you. At first it worked, but after a week the sync stopped with the above error message. In the meantime i installed soocial.com. Referring to one of the above comments it might be related to this as soocial.com syncs contacts. I am not technical enough to follow the above instructions. Any help, please?
 
Re: Could not connect to Microsoft Outlook : error -2146959355 JLIA2 1/15/10 8:44 AM
NomadCF thank you that worked like a charm.
Re: Could not connect to Microsoft Outlook : error -2146959355 TrevorJW 1/16/10 10:53 AM
I have had the problem since installing Word and Excel 2010 Beta (but NOT Outlook 2010).  I had previously used  the fix of renaming or deleteing the TypeLib 9.3 key, but the problem seems to be that Office 2010 creates a 9.4 key that gives the same issue so I renamed that as described above.  I then found that Sync still gave an error message, but if I opened Outlook first, then started a sync manually, it connected.  After that it seemed OK even if Outlook was not running.
 
There is a further problem - if, like me, you are trying Office 2010 and have kept the previous version, you may have noticed the irritating way Office insists on spending a couple of minutes "configuring Office" when you start up a version that differs from the last one you ran.  It appears that this process re-creates the 9.3 and/or 9.4 registry entries, so keeping Sync running is a constant battle.
 
It looks as if this will be a constant problem for anyone installing Office until Google manage to prevent Sync from being affected by this registry entry.
Re: Could not connect to Microsoft Outlook : error -2146959355 DarkOneX 1/29/10 11:24 AM
Running Windows 7 64bit here, had same trouble, did the registry thing but still didn't work, but read what shswanson said and that finally fixed it.  The folder in that 9.4 key was pointing to Office14 because I briefly had Office 2010 beta installed, and I switched that key value to Office12 folder and that fixed it, thanks!
Re: Could not connect to Microsoft Outlook : error -2146959355 ken.boyer 2/1/10 3:48 AM
@shswanson - thank you! That did the trick!
Re: Could not connect to Microsoft Outlook : error -2146959355 PatrickDickey 2/11/10 9:07 AM
I've gotten this error on Windows 7 with Outlook 2007 installed also.  Right now, I'm waiting for Outlook to completely close (it seems to keep the grey icon forever after I shut it down), and then I'll be trying to open them both as an Administrator.  Hopefully it will sync then.  I didn't notice this until I decided to click on the systray icon to kill the sync (which had been running forever apparently) and then the error message popped up.

Personally, I think that if Google isn't going to fix this problem (or try to at least) after it's existed for over a year, then they need to open the source code up, and let other developers finish the job they started.  If I could get Remote Calendars to work on my Outlook (and knew enough about C# to update it to a more current version), I'd use that instead.

To think, this all started because I wanted to try Linux out for a week.  I had to transfer my e-mails from Live to gmail, because Microsoft refuses to allow third-party clients to view your accounts.  Now, I have to tweak things because Google refuses to fix an incompatibility between their sync program and Outlook (the main client that they use it with).

<rant> This is why Open Source is a better model.  IF the actual developers decide that it's not worth their time (or in their capabilities) to fix something, then SOMEONE ELSE will pick up the torch and run with it (granted only on more popular apps). </rant>

Have a great day:)
Patrick.

An UPDATE:  I reopened both Outlook and Google Calendar Sync as Administrator.  I have it set to sync every 30 minutes, and it was 20 minutes from the last sync.  So, I waited.  At 36 minutes (or so) I looked in my calendar, and nothing had synced.  (I had created two dummy entries to check this).  So, I clicked the Sync now option and it worked perfectly.  So, it syncs manually, but not automatically yet....  (Maybe next time around).
Re: Could not connect to Microsoft Outlook : error -2146959355 Jrumph 2/15/10 7:22 PM
For what it's worth. I'm running XP Professional and Outlook 2007. This problem just popped up this afternoon and I have no idea why But..
Tried renaming etc. tried deleting to no avail. Very frustrating. I had just synced this morning so I knew it worked. Didn't add or change anything.

So it dawned on me that when all else fails RESTORE. So I did a system restore  with the date of 2 days ago since I knew it worked then.

Voila! That worked. I have synced it three times and added items to sync and all worked great. Hopefully it will stay that way but it's an easy fix if it works for you.
Re: Could not connect to Microsoft Outlook : error -2146959355 AfricanTech 2/17/10 4:00 AM
After reg changes, etc still wouldn't work. 

Eventually, I reopened both Outlook as Administrator and now it works (manual sync).
Re: Could not connect to Microsoft Outlook : error -2146959355 Jagged 3/2/10 5:44 PM
Thanks to shswanson which provided the clue that the other Registry "fixes" for the Outlook 2003 TypeLib entry were missing.
 
I'm posting too much because I'm pretty sure this is going to work for most people. it just might be a little trickey.
 
This provides details relating to the MSOUTL.OLB file which is the ActiveX Type Library used by Google Synch(if there are others used it would be nice to know so that this fix is complete)
 
Comments...
The reasons some of the fixes worked, and some didn't is that it's hard to cover all bases for all computer setups, some might have an incorrect file version, some might just need the typelib file re-registered some might have duplicates etc.. etc.. The relevant information here is that Google Synch needs to reference the type lib file in order to pull your outlook calendar information and synch it. (http://en.wikipedia.org/wiki/Dependency_hell) Depending on if you had differing versions of office products or have upgraded etc.. will cause this.
 
Fix:
 
=========================
If you use Microsoft Office 2003,
=========================
You need MSOUTL.OLB file in %ProgramFiles%\Microsoft Office\Office12
The MSOUTL.OLB should match your office version 2003.  
 
You can create a registry file(easier than manual edit...) which will have the following entries (Update path as needed) copy and past italicized text which follows on next line.
 
Windows Registry Editor Version 5.00
 
[HKEY_CLASSES_ROOT\TypeLib\{00062FFF-0000-0000-C000-000000000046}\9.3]
"PrimaryInteropAssemblyName"="Microsoft.Office.Interop.Outlook, Version=12.0.0.0, Culture=neutral, PublicKeyToken=71E9BCE111E9429C"
@="Microsoft Outlook 12.0 Object Library"
 
[HKEY_CLASSES_ROOT\TypeLib\{00062FFF-0000-0000-C000-000000000046}\9.3\0]
 
[HKEY_CLASSES_ROOT\TypeLib\{00062FFF-0000-0000-C000-000000000046}\9.3\0\win32]
@="C:\\Program Files\\Microsoft Office\\Office12\\MSOUTL.OLB"
 
[HKEY_CLASSES_ROOT\TypeLib\{00062FFF-0000-0000-C000-000000000046}\9.3\FLAGS]
@="0"
 
[HKEY_CLASSES_ROOT\TypeLib\{00062FFF-0000-0000-C000-000000000046}\9.3\HELPDIR]
@="C:\\Program Files\\Microsoft Office\\Office12\\"
 
*** stop copy ***
Paste the above text into notepad, save the file with a .REG extension, double-click to import.
 
=========================
If you use Microsoft Office 2007,
=========================
You need MSOUTL.OLB file in %ProgramFiles%\Microsoft Office\Office14
The MSOUTL.OLB should match your office version 2007(but will work with version 2003 as well).  
 
Copy and past italicized text which follows on next line.
 
Windows Registry Editor Version 5.00
 
[HKEY_CLASSES_ROOT\TypeLib\{00062FFF-0000-0000-C000-000000000046}\9.4]
"PrimaryInteropAssemblyName"="Microsoft.Office.Interop.Outlook, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71E9BCE111E9429C"
@="Microsoft Outlook 14.0 Object Library"
 
[HKEY_CLASSES_ROOT\TypeLib\{00062FFF-0000-0000-C000-000000000046}\9.4\0]
 
[HKEY_CLASSES_ROOT\TypeLib\{00062FFF-0000-0000-C000-000000000046}\9.4\0\win32]
@="C:\\Program Files\\Microsoft Office\\Office14\\MSOUTL.OLB"
 
[HKEY_CLASSES_ROOT\TypeLib\{00062FFF-0000-0000-C000-000000000046}\9.4\FLAGS]
@="0"
 
[HKEY_CLASSES_ROOT\TypeLib\{00062FFF-0000-0000-C000-000000000046}\9.4\HELPDIR]
@="C:\\Program Files\\Microsoft Office\\Office14\\"
 
*** Stop copy ****
Paste the above text into notepad, save the file with a .REG extension, double-click to import.
 
 
Where to get the MSOUTL.OLB? First, do a search on your machine. Second.. the www...
Let me know if it works...
 
NOTE: If you have a different version, you should be able to modify the file accordingly. 9.2 Office 2000, 9.3 Office 2003, 9.4  Office 2007 etc... similarly with paths.
 
NOTE #2: You should only have ONE entry for the typelib file, according to the version of outlook you use. You should therefore double-check your registry (Start, Run, "Regedit") at the path HKEY_CLASSES_ROOT\TypeLib\{00062FFF-0000-0000-C000-000000000046}, if you have multiple entries for 9.x rename the 9.x keys to anything(such as 9.x_bak) and leave the 9.x you will have imported (from file above) intact.
 
Re: Could not connect to Microsoft Outlook : error -2146959355 M3g4d37h 3/16/10 9:55 AM
try this;

Start->run..then type the following -> "Outlook.exe /resetnavpane"
Re: Could not connect to Microsoft Outlook : error -2146959355 esgiii 3/24/10 2:26 PM
kevin talbot you are a genius,
Re: Could not connect to Microsoft Outlook : error -2146959355 Kev Reid 3/30/10 1:57 AM
I am running Windows 7 and Outlook2010  Beta 
Windows 7 is 64 bit - make sure you don't install Outlook 2010 64bit because Google Sync is a 32 bit app.
So Outlook 2010 32 bit
Registry Delete 9.3 as previously told

If you only have a default profile in Outlook this shoudl now work but.....
If you have a non default profile in Outlook (even if you still only have a single profile) then problems.

If Outlook is running - google sync gives the error 214.....
Kill Outlook - now google sync will run and ask you to confirm your profile. Set it to use this profile but it makes no difference Google sync will always ask if it is a non standard profile. Google sync will now sync while Outlook is closed.

Restart Outlook and the 214... error returns in fact in my case Outlook crashes on the next close.

So Just before I log off I close outlook - start Google sync, confirm the profile,  sync happens. I can shut down and my iphone is already up to date from google calendar.

Not very neat but it is getting me by.

Regards
Re: Could not connect to Microsoft Outlook : error -2146959355 bubbagump04 4/18/10 2:19 PM
Jagged you are the man. Worked like charme.
Re: Could not connect to Microsoft Outlook : error -2146959355 karmakar.shantanu 4/19/10 12:47 AM
I was facing the same problem. But I tried running the Outlook as the user for which the user is configured.
right click on outlook--> Run as --> enter the credentials of Outlook account
PS:- this s only tested for 32 bit XP OS.
Re: Could not connect to Microsoft Outlook : error -2146959355 scott.howard82 4/28/10 10:44 PM
@NomadCF You are Genius! That solved my problem with google calendar not syncing one-way to my outlook.

BTW, anybody having difficulty, the 9.1 references a folder underneath the registry key location. Rename the 9.1 folder and you are set!
Re: Could not connect to Microsoft Outlook : error -2146959355 Gaseous 5/18/10 7:55 AM
I dealt with this issue this morning on a client's computer. They are running XP sp 3 with Outlook 2003. We received the error message: Could not connect to Microsoft Outlook : error -2146959355

Our solution was to completely uninstall the program. We then downloaded and installed the latest versions of both Java and Flash. Google Sync was reinstalled. Everything worked fine, all without touching the registry.
Re: Could not connect to Microsoft Outlook : error -2146959355 Schmarzo 5/24/10 3:07 PM
I had downloaded a Beta version of Visio and it stopped my sync from working.  When I de-installed Visio Beta, the sync worked again.
Re: Could not connect to Microsoft Outlook : error -2146959355 His Nibbs 5/28/10 2:11 AM
After trying several things here (and a couple of other places) this is what worked for me;

Windows 7 Home Premium
Outlook 2007
Google Synch d/l - 27 May 2010

1) Uninstalled Google Synch (after having tried to get it to work a few ways setting compatibility and privileges)
3) CLOSE OUTLOOK, make sure it's not even running in the background
2) Regedit > HKEY_CLASSES_ROOT\TypeLib\{00062FFF-0000-0000-C000-000000000046} and changed keyname to 9.3 OLD9.3 (not sure this made a difference but it's working and this is what the reg is now)
3) Right click GoogleCalendarSync_Installer.exe and "Run as Administrator" follow the install and insert your login details.
4) Find GoogleCalendarSync.exe after you have finished installing it and right click select properties>compatibility make sure nothing is marked in the compatibility mode (mine default set XP service pack 3). Close dialogue box.
5) Go to start>run type mail and enter
6) One of the search results should be a programme called simply 'Mail' double click and run it and select "Show Profiles"
7) Make sure Outlook is selected and the radio button "Always use this profile" is highlighted and hit apply (if not already selected) and close
8) Ensure Outlook is still closed
9) Start Synch (without Outlook running) and run your first synch, mine ran fine and synched with Google calendars at this point, but I wanted it to run with Outlook open
10) Find Outlook.exe, right click and select "Run as Administrator", confirm any dialogues and run Outlook.
11) Perform synch. This should, fingers crossed now run with now error and actually do the synch with Outlook open (unless you have other issues)
12) Close Outlook, restart without running as Administrator, add a new calendar entry and try synching again, it should work.

I say SHOULD. No guarantees that it will finer minds than mine have colluded to produce this problem I can only stab at buttons in the dark. Now been running fine for about 2 hours, haven't tried shutting down and rebooting. Or installing other stuff like updates or other programmes so it may be flakey, not sure, because to be frank I'm not quite sure why it worked this time and no others? But the combo above did work and may work for you I can give no guarantees it seems different things are working on different machines with different OS and Outlook versions. Good luck!

Re: Could not connect to Microsoft Outlook : error -2146959355 McoreD 6/16/10 6:04 PM
My solution was entirely different because this is really what happened to me. I installed in XP as Administrator. I didn't realise the application was run as Administrator and I was expecting it to sync with Outlook. No surprise, when I closed the Sync program and re-ran it, everything worked great. 
Re: Could not connect to Microsoft Outlook : error -2146959355 McMurdock 6/21/10 11:05 AM
I used Jagged's solution and it fixed my problem!!

My problems started when I refreshed my 64 bit Win7 enterprise machine and then installed Microsoft Office 2007 (Office 12), followed by Micorosft Visio 2010. Following Jagged's advise I did the following:

1. I looked in my registry and found that I had a 9.3 and 9.4 key. But the strange thing was that the 9.4 key was empty, it had no children items. Just for clarity, this is the key I am referring to:

    HKEY_CLASSES_ROOT\TypeLib\{00062FFF-0000-0000-C000-000000000046}\9.4

2. I used Jagged's info and manually renamed my 9.3 key to 9,3_ORIG.

3. Next, I manually added the 0 key as a child of 9.4 and then added the win32 child. I added the FLAGS, and HELPDIR keys as siblings to my newly-created 0 key.

3. I made sure that the win32 data value was pointing to a file (MSOUTL.OLB) that existed. My value for the win32 key is c:\program files (x86)\Microsoft Office\Office12\MSOUTL.olb.

4. I did notice one strange detail: My 9.4 key had two entries: One, with the name of Default, didn't have a value. The other entry named PrimaryInteropAssemblyName had the following value: "Microsoft.Office.Interop.Outlook, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71E9BCE111E9429C". This is strange because I am running Office 2007 (ver 12) and Visio 2010 (ver 14). So it looks like it thinks I'm running Office 2010 only because I am running Visio 2010. Then, when I looked in the registry on another one of my machines which is running Office 2010 and Visio 2010, the 9.4 key also had these two values, but the difference was that the one named Default had a value and it was set to: Microsoft Outlook 14.0 Object Library. I don't know how significant these little differences are. But I point them out in case someone that knows how all this works can explain it better.

5. After I made these registry changes, I started Outlook 2007 and then started Google Sync. It synced without error.

Thanks to everyone for there ideas and suggestions.

~Michael.

Re: Could not connect to Microsoft Outlook : error -2146959355 fjzv 7/1/10 7:32 AM
Running Windows XP SP3
MS Office 2007
MS Visio 2010 Beta (Creates the 9.4 Registry Entry)

Here is what I did that fixed my issue:

1: Registry deleted 9.4 Key (Directory)\
HKEY_CLASSES_ROOT\TypeLib\{00062FFF-0000-0000-C000-000000000046}\9.4

Done.

If you don't want to bother with reg edit, copy the following two lines to a text file and save with a .reg extension.

Windows Registry Editor Version 5.00
[-HKEY_CLASSES_ROOT\TypeLib\{00062FFF-0000-0000-C000-000000000046}\9.4]
Re: Could not connect to Microsoft Outlook : error -2146959355 ChromePen 8/4/10 7:17 AM
I tried repairing the Outlook installation via add/remove programs, which had no effect.

In my case a mix of the above solutions worked.

I used NomadCF's procedure for inspiration, as well as the notes by Jagged and shswanson. The first 4 steps are the same as NomadCF's:

1. Close outlook completely (or reboot and don't open it)
2. Backup your systems registry
3. open regedit (if you haven't already)
4. Goto / Fallow this path => HKEY_CLASSES_ROOT\TypeLib\{00062FFF-0000-0000-C000-000000000046}

The following steps are different:

5. Don't delete the 9.3 key. Instead, if there is e.g. a "9.2" key, recreate the contents of that key in 9.3. The important thing to remember, is to get the path to the ".olb" file copied to 9.3 also. Of course, you should make sure that path is valid (i.e. that the file actually exists in that location). If you do this correctly, the contents of "9.3" should be identical to those of "9.2"

6. close regedit
7. reopen outlook and try to sync.

Now it works!

As an interesting side effect, this procedure also fixed my copy of the Curosoft OutlookSync program, which was not working, since it could not connect to Outlook. So apparently the above fix will fix more than just Google Cal Sync.
Re: Could not connect to Microsoft Outlook : error -2146959355 liberte 8/23/10 7:45 PM
Running Windows 7 64-bit
Office 2010 Home & Business 32 bit
 
Outlook 2010 would not sync with Google Calendar until new version 0.9.3.6 released this past week.  I uninstalled the old version and installed the new version of Goodle Calendar sync made to work with Outlook 2010.  It worked once, then kept giving me the error message 2146959355 as others have received as far back as last year.  I uninstalled Office 2010 and Calendar sync, then reinstalled both.  I am still getting the same error message.
 
If I try to switch to Outlook 2010 64 bit it won't work at all with google Calendar and a conflict arises with Outlook Connector (for Hotmail.)
 
Any ideas anyone?  Thanks.
Re: Could not connect to Microsoft Outlook : error -2146959355 JDHardie 8/27/10 8:21 AM
Running Win 7 (32), Office 2010 (32).
 
Got same error after installing new version. Changed Outlook to "Run as Administrator" and it synced.
Re: Could not connect to Microsoft Outlook : error -2146959355 agroppi 9/2/10 5:57 AM
JDHardie has find THE solution !!!

As simple as efficient !

Running Office 2007 and Windows 7 professionnal 64 bits


Changed Outlook to "Run as Administrator"
Changed Google Calendar Sync to "Run as Administrator"

Open first Google Calendar Sync then Outlook

And all works fine :)
Re: Could not connect to Microsoft Outlook : error -2146959355 Rut Dog 9/28/10 1:01 PM
Windows XP, Outlook 2003, suddenly this started after I ran a registry repair program which really helped my system, so I didn't want to roll it back.

In Outlook, I selected Help/Detect and Repair. It runs the Office installer, and it fixed the problem.

Re: Could not connect to Microsoft Outlook : error -2146959355 EliasNT 9/30/10 1:09 AM
run outlook 2010 and GoogleCalendarSync both as administrator

right click in both icons and in the compatibility tab click RUN AS ADMINISTRATOR

it worked for me running outlook 2010 32 bits on windows 7 home premium 64 bits
Re: Could not connect to Microsoft Outlook : error -2146959355 dlxmax 10/2/10 3:20 PM
The "JDHardie" solution does not work for Win7 x64 with Office 2010 x64.
Re: Could not connect to Microsoft Outlook : error -2146959355 Sh4rky 10/4/10 1:55 PM
Kevin Talbot's solution worked for me! I didn't realize that I installed MS Project 2010 Beta. GoogleCal must have been looking under 9.4 (Office 2010) key instead of 9.3 (Office 2007), once I renamed 9.4 key in registry and reloaded the apps, everything started working! :)
Re: Could not connect to Microsoft Outlook : error -2146959355 tomdtom 10/12/10 6:27 AM
"JDHardie" solution works for outlook 2007 and windows 7 64bit.
Re: Could not connect to Microsoft Outlook : error -2146959355 wallymortar 10/21/10 5:56 AM
Had a similar problem receiving error code 2146959355 on an Acer Aspire One netbook running Windows XP Pro and Outlook  2003.  Funny thing is that Google Calendar Sync is working fine on a Dell Latitude D630 running exactly the same OS and MS Outlook.  Sync used to work on the Acer but now quit working for some reason.
Re: Could not connect to Microsoft Outlook : error -2146959355 bennydanny 10/25/10 2:13 PM
I've solved my problem by uninstalling the avast anti-virus internet security 5.06 (or something) and installing avast pro 4.8... don't need to change registry entries ou "run as administrator" stuff...
Works to me..
Re: Could not connect to Microsoft Outlook : error -2146959355 nme159 11/12/10 8:28 AM
I'm running Vista 64bit.  214 comes up when google and outlook sync.  Using sync for hp laptop and iphone.  Tried the admin thing.  Didn't work for auto sync. Here is what i did:
 
Control Panel
uninstall program
Find microsoft office outlook connector and select it
click repair button at top of menu.
bang.
done.
Ran a test sync and all is good!
 
If you can't tell already i'm not a techy, but just figured i'd try this before obliterating my reg with my lack of knowledge.
 
Hope this helps somebody!!!
 
Re: Could not connect to Microsoft Outlook : error -2146959355 kenoshamagic 12/2/10 2:23 PM
I am using Window 7 64 bit and Outlook 2007. I have tried everything here and everything else and am still unable to prevent this error from returning!!! Are there any additional solutions available???
Re: Could not connect to Microsoft Outlook : error -2146959355 Pete1980 1/5/11 3:54 AM
NME 159's solution solved this problem for me, on Win 7 64 Bit and Outlook 2010:
Re: Could not connect to Microsoft Outlook : error -2146959355 DSwissK 2/10/11 11:31 AM
I think I got the solution : I get this error when I'm running Google Calender Sync as administrator. When I run it as normal user it works.
Re: Could not connect to Microsoft Outlook : error -2146959355 DeepLiving 3/16/11 3:55 AM
Had it working fine for a while with OUtlook 2010 and Windows 7, suddenly today got the -214 error only when Outlook is already running.
 
Starting Outlook as administrator (thanks winecurmudgeon ) it works fine.
 
Interesting!
 
Bennie Naude
London
 
Re: Could not connect to Microsoft Outlook : error -2146959355 Hart7 3/25/11 10:08 AM
My Sync with Outlook on an XP machine stopped working unexpectedly.  It turns out there was a suspended Outlook process in Windows Task Manager (Ctrl+Alt+Del).  After ending that process, Sync worked fine again.
Re: Could not connect to Microsoft Outlook : error -2146959355 mailgc 4/1/11 12:36 PM
That worked for me:      (W7,32b outlook2010)

right click on outlook icon and run it as admin.
then its syncs
Re: Could not connect to Microsoft Outlook : error -2146959355 coxwain 4/18/11 8:20 AM
This error happened to me because my outlook had not fully signed in.  I selected the outlook profile loged onto outlook  and then the google sync finished. 
Re: Could not connect to Microsoft Outlook : error -2146959355 smurf211 5/21/11 7:12 AM
I just had this problem and it was as simple as the wrong email address spelling and pw combination. Sometimes the obvious can be evasive. Just a thought.
WebRep
Overall rating
 
Re: Could not connect to Microsoft Outlook : error -2146959355 eranrose 5/24/11 11:43 AM
I had the same error on W7 x64 . I also saw that outlook process was stuck after the sync attempt.
The solution:
Go to where google sync is installed (in my case: C:\Program Files (x86)\Google\Google Calendar Sync\GoogleCalendarSync.exe
Rght click on the file>Compatibility and tic the box under "Run this program as administrator" . Click OK and try a manual sync. If you look at the task manager you will see that Outlook.exe opens and closes after the sync.
Hope this helps.
Re: Could not connect to Microsoft Outlook : error -2146959355 rdub98 6/6/11 9:47 AM
I'm running Windows 7 32-bit with Office 2010 Professional 32-bit.  This worked for me:
 
Found the executable for Google Calendar Sync
Right-clicked, selected Properties
Clicked on the Compatibility tab
Unchecked "Run This Program In Compatibility Mode for: Windows XP Service pack 3"
 
I don't know why, but apparently it installed with those settings automatically.
 
Sync now runs with both Outlook open or closed.
 
Hope this helps someone.
Re: Could not connect to Microsoft Outlook : error -2146959355 aujy 7/5/11 2:44 AM
I managed to fix this problem based on a few assumptions
-Gcal is reading the wrong registry entry
-Office has confused itself with regard to which registry entry it is using (especially after an upgrade or additional install)

I combined a few of the issues above (but have not seen my exact solution anywhere yet - hence the reply)

1. backup registry (just in case)
2. Back up outlook.pst
3. Uninstall outlook
4. Uninstall gcal sync
5. rename the 9.3 & 9.4 registry entries (as per above)
6. Reinstall Outlook
7 Reinstall Gcal sync

NOTE: I tried EVERY SOLUTION suggested so far and it didnt work. Reinstalling both (not either) seems to put them both back to original state but the registry entry change last is THE KEY. So I decided to try my solution suggested. WORKED A TREAT! :-)


Re: Could not connect to Microsoft Outlook : error -2146959355 emaneric 7/5/11 4:16 PM
I have WIN7 Pro 64 bit, and Outlook 2010 (14) 64 bit.  I fixed this problem this problem by running Outlook and Google Calendar Synch as Administrator.  If you right mouse button click on the program icon, you can set Outlook (and then Google Synch) to run as administrator when you click on them.  You still have to answer "Ok" if you have UAC turned on which is kind of a pain but I guess it's ok as a work around the problem.  I've seen similar issues running other programs on WIN7.
Re: Could not connect to Microsoft Outlook : error -2146959355 aujy 7/5/11 4:27 PM
@emaneric. That solution didnt work for me :-(
Re: Could not connect to Microsoft Outlook : error -2146959355 Falberici 7/25/11 9:58 AM
I had the same problem. 
After I´ve changed time and date formats (I´m Brazil and the formats here are 31.12.2011 and 13h00). 
Other measures I took were putting both outlook and google sync in the same idiom and deleting my old stuff - now, I have less than 250 appointments.
 It seems working now. 
Re: Could not connect to Microsoft Outlook : error -2146959355 ShaunMe 8/23/11 12:00 PM
Hey trying turning the settings on and off...like, change from two way sync to one way sync and back again. Worked for me.
Re: Could not connect to Microsoft Outlook : error -2146959355 GuntherMarais 8/30/11 2:44 AM
I did the following and it worked...too lazy to figure out which one solved it:
 
first I:
 
1. Close outlook completely (or reboot and don't open it)
2. Backup your systems registry
3. open regedit (if you haven't already)
4. Goto / Fallow this path => HKEY_CLASSES_ROOT\TypeLib\{00062FFF-0000-0000-C000-000000000046}
5. Delete the and only THE Key "9.3" or just rename it 
6. close regedit
7. reopen outlook and try to sync. 
 
 
then I:
 
In Outlook 2010 File -> Options -> Add-ins
Manage: COM Add-Ins pull down at bottom, Click: Go
Under Add-Ins available:  Google Calendar Sync was unchecked.  Add a check and click OK.
 
and then finally I:
 
Step One: Go into your Control Panel in Windows.
Step Two: Find "Mail" and click it
Step Three: Click "show profiles"
Step Four: "When starting Microsoft Office outlook, use this profile" check "Always use this profile" making sure the profile. you want is the one in the dropdown box. You are most likely to have only one profile.
Step Five: Hit "Ok" and close everything.
Re: Could not connect to Microsoft Outlook : error -2146959355 abuwalda 9/29/11 2:00 PM
NomadCF - brilliant - thanks so much :)
Re: Could not connect to Microsoft Outlook : error -2146959355 bilofsky 10/1/11 2:00 PM
I tried a few things, but the one that worked was GuntherMarais last one - setting the profile in Control Panel / Mail to Always use this profile.
Re: Could not connect to Microsoft Outlook : error -2146959355 asiir 12/9/11 12:05 PM
I'm having the same issue. I've tried everything on this page with no luck. I now close Outlook and then manually run a sync on GoogleCalSync, which works for me. I have to run Sync as admin to get it to work.

Outlook 2003
Win 7 (64 bit)
Re: Could not connect to Microsoft Outlook : error -2146959355 GMoney19777 12/13/11 3:57 PM
I tried all of the above fixes and nothing worked.  Then I stumbled upon another solution and so far so good!!!.  Run both programs in "Windows XP compatibility Mode".  My machine defaulted this setting to Windows Vista Compatibility mode.

Follow these simple steps

1.  Close Outlook and GCS and reboot system
2.  Find Outlook in your programs list.  Right click the program and select "properties"
3.  Click the "Compatibility" tab
4.  If the drop down box is not grayed out, select Windows XP (SP3), if you cannot change, select "change selections for all users" at the bottom.  At the next screen select Windows XP (SP3).  Click "Apply"
5.  Repeat process for GCS

Hope this works for you!  So far I haven't found a good free alternative to GCS

Win 7 64bit
Office Pro 2007


Re: Could not connect to Microsoft Outlook : error -2146959355 Hermdiesel 12/14/11 10:26 PM
I was having these same issues and after trying dozens of suggestions i read here and on other sites this is what worked for.

Make sure your NOT running office as a "click to run" install
Make sure that you are running both outlook and Google sync as the administrator
In the add ins option of outlook make sure the box is checked for Google sync
Also in add in make sure no other sync add ins are present
Delete  gmail mail calender
under options in google sync set to one way sync from outlook to google calender
start outlook
start google sync
after the first sync change google sync options to two way sync

dance the happy touch down dance

this somehow worked and i am now syncing events from outlook to gmail calender to my iphone calender all directions. any change to one appears on all three!!
Re: Could not connect to Microsoft Outlook : error -2146959355 joshinsobe 1/3/12 1:31 PM
I don't know if this has been answered but here's what has worked for me-
 
It seems that g-sync tries to open at administrator.  While outlook opens as user.  when I changed them both to open at administrator, it worked with no error.  When I changed them both to open as user, it worked fine.  But if ONE opens at admin and the other doesn't, you get the permission error.
 
Steps to fix
1. rightclick on GoogleCalendarSync.exe / properties/ compatibility UNSELECT run as administrator ( I also selected Change for All users).
 
Do the same thing for Outoook.exe
Make sure they both do not run as administrator.
Re: Could not connect to Microsoft Outlook : error -2146959355 skibumz 1/18/12 5:08 AM
I get same message with Outlook 2010 and vista with same gmail address in outlook
Re: Could not connect to Microsoft Outlook : error -2146959355 griffiwm 2/14/12 12:22 PM
Neither was marked to run as administrator. Any other ideas?

Re: Could not connect to Microsoft Outlook : error -2146959355 Alwayscan 3/20/12 7:18 AM
This worked for me.  Great, Thanks  The error message came after updates were made to windows 7 ultimate.  
Re: Could not connect to Microsoft Outlook : error -2146959355 syncfi 5/20/12 12:07 PM
I have win7 pro 64 bit, outlook 2007 (32 bit).   this suggestion was great and running both outlook and google Calendar sync as ADMINSTRATOR fixed the issue.   No need to edit the registry.  Thanks!
Re: Could not connect to Microsoft Outlook : error -2146959355 DBMaster 7/1/12 1:33 PM
Win 7 Ultimate 64, Outlook 2010 and Google Calendar Sync .9.4.1. 
Set both shortcuts to run as administrator solved the error.  No registry or User permissions changed on the MSOUTL.OLB library file.
When the programs start just have to accept YES to the UAC popup the first time after a reboot.
Not sure what security breaches, if any, this may allow.  If you can't modify the settings on your shortcuts or in Vista- RClick to run as administrator then you may have to seek other solutions.
Re: Could not connect to Microsoft Outlook : error -2146959355 DBMaster 7/1/12 1:52 PM
BTW to change a shortcut to Run As Administrator by default RightClick shortcut, select properties, Seclect the Compatibility TAB, check the "Run this program as an administrator" Privilege Level check box. 
When programs start, watch the Task Bar for blinking UAC icon and select to approve the administrator choice.  Sometimes the UAC control will visibly pop up on top but it can just as easily be hidden behind other windows waiting, and waiting, and waiting for your input.
Re: Could not connect to Microsoft Outlook : error -2146959355 Toumal 7/3/12 5:21 AM
The simple registry rename trick didn't help, but McMurdock's solution worked for me! Win7 64bit with Outlook 2007. Doesn't need to run as administrator.


Re: Could not connect to Microsoft Outlook : error -2146959355 zabli 7/8/12 8:55 AM
In my case it was the Mc Afee security software that caused the error (often installed with firefox). After I deinstalled it, outlook worked again..
Re: Could not connect to Microsoft Outlook : error -2146959355 divinitus 7/18/12 6:02 PM
Running Outlook 2010 as the administrator totally solved the problem for me.
Re: Could not connect to Microsoft Outlook : error -2146959355 Deme Jozsef 7/22/12 4:12 AM
Hi All,
 
I have the same problem on Win7 with Office2010. The solution was similar as mentioned by NomadCF. The difference is: there ware two entry: 9.4 with more subentry structure, and 9.5 without any other subentry. I deleted the 9.5, and let 9.4 without any changes. The problem is solved, everything works well!
Best regard
dj.
Re: Could not connect to Microsoft Outlook : error -2146959355 Cobacha 9/25/12 6:08 PM
NomadCF, you're a genius.  Thank you.
Re: Could not connect to Microsoft Outlook : error -2146959355 Michael Saba 10/25/12 1:04 PM
This worked for me as well. 

I tried everything from the top of this thread down. Finally, read to delete the 9.5 reg. I already had outlook and sync running "as admin" so i'm not sure if that has anything to do with it. 

Sync now works.

Thank you.
Re: Could not connect to Microsoft Outlook : error -2146959355 Gerald Smith 11/18/12 4:29 PM
Thanks you. I was going crazy trying to resolve the issue. Cal Sync was unselected run as admin and Outlook was set to run as admin. I deselected run as admin on outlook and the problem was solved.
Re: Could not connect to Microsoft Outlook : error -2146959355 Howard Soo 12/11/12 7:44 PM
Depending on the symptoms, if the reason you are getting the "Could not connect to Microsoft Outlool : error -2146959355" error while there is a greyed Outlook icon in the task tray, which forbid you from re-launching outlook, until you force-quit it, then it's most likely an Outlook Add-in problem.
 
I've tried most of the suggestions many times, and somtimes it will work for a while, until Microsoft launch a new update to Office and reactivate the problematic add-ins. Just know that this error has nothing to do with G-cal-sync, so don't bother unintalling it or messing with admin rights to it.
 
Basically, there could be a number of Outlook add-ins which can create problems when Outlook is shut-down, and when G-cal-sync tries to launch it in the background, syncing the data, it usually works the first time (there's no problem G-cal-sync launching Outlook, just that it can't shut it down properly, hence the greyed icon in the task tray). When and if Outlook isn't shut-down completely, the next time G-cal-sync tried to launch Outlook in the background to sync, the error occurs!!! That's it, that basically what's happened here.
 
Solution:
 
(1) Open up Outlook
(2) Go to Tools > Trust Center > Add-ins
(3) You should see Outlook Change Notifier in the Active Application Add-ins group
(4) Don't click on the actual Add-in selection, just look to the bottom of the screen, when it says Manage: COM Add-ins, click the Go button
(5) Listed here in the COM Add-Ins, the ones checked are the Active ones, the ones unchecked are the inactive. Just uncheck Outlook Change Notifier!!! Click OK, do not click Remove!! Remove means removing the entire Add-in from Outlook, which creates other problems.
(6) When Add-ins are inactive, it can still be activated when required, just like the Google Calendar Sync Add-in you see, also unchecked.
 
That's it, let me know if this works, worked for me every time I have any G-cal-sync/Outlook error!
Re: Could not connect to Microsoft Outlook : error -2146959355 Olivier Lautrec 1/29/13 7:20 AM
This one works for me with a little modification i've copy msoutl.olb from
C:\Program Files (x86)\Microsoft Office\Office12
to
C:\Program Files\Microsoft Office\Office12
Re: Could not connect to Microsoft Outlook : error -2146959355 JC Y 2/19/13 9:16 PM
Hi,

I know this is an old post, and I unfortunately ran into the same problem in the past few days.

I don't know the exact cause of the problem, but I suspect that it has something to do with installing Office 2013.  Microsoft has changed the offline installation method, and now it has to be installed online first before one can download an offline installer.

In any event, I am glad to find this discussion, and have tried many solutions without any luck until - coonj's solution.

I uninstalled Google Sync, and made sure it is not in the add-in section of Outlook 2010.

I then went to the above registry (backed up first), and then deleted ALL nodes under TypeLib\{...0046}.

Rebooted and opened up Google Calendar, and it could see my profile and went to synchronize the calendar without any problems.

The only thing is that there will be multiple redundant entries mixed with the old and new entries in Google Calendar, but it's OK.

Thanks again for all the sharing!!

 
Re: Could not connect to Microsoft Outlook : error -2146959355 Elia13 2/27/13 4:38 PM
You  are a legend... You would not believe what a help you gave... much appreciated. It worked like a charm.
Re: Could not connect to Microsoft Outlook : error -2146959355 Amir Soofi 3/27/13 12:51 PM
I know this product is discontinued, but for those of us still clinging on...

This error could happen if Calendar Sync runs with elevated Admin privileges while Outlook runs without elevation.  Instead of elevating Outlook as suggested above, I closed Calendar Sync and ran it again without elevation. While both Calendar Sync and Outlook are running, and both without elevation, the error goes away.
Re: Could not connect to Microsoft Outlook : error -2146959355 Lesa Evans 4/22/13 5:15 PM
Thanks, BradsMorris! I took a hint from your post and did the following:

1. Closed Calendar Sync in the system tray
2. Waited 10 seconds
3. Opened Outlook with no issue
4. Re-opened Calendar Sync
5. The sync sunc and all is well

I'm running Windows 7 Home Premium and this morning I closed Outlook and re-opened it without restarting. Outlook wouldn't open and I started getting the 2146959355 error message, so I rebooted. Outlook still wouldn't open so I hopped online and found this thread. 

Thanks again - worked like a charm! 
Re: Could not connect to Microsoft Outlook : error -2146959355 Alex Ingor 5/12/13 6:07 PM
Jagged, you're the Man. Great job, thank you, it worked with me!!!
Re: Could not connect to Microsoft Outlook : error -2146959355 HS82 6/5/13 12:13 AM
Thanks winecurmudgeon, restarting the Outlook and gsync as Administrator solved this issue for me

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