Outlook crashes when creating new email

I am having an issue with Outlook. Whenever I try to create a new email, new task, reply to an email, forward an email, Outlook will crash.

I have not installed any new software recently that would have altered Outlook. The only "extensions" that I have installed are an Autotask extension and Google Calendar Sync. I have tried disabling/removing both extensions and the issue still occurs.

I have ran Outlook in safe mode and I am able to reply to emails and create new emails, but Outlook will crash after a few emails (5-6) have been created/replied to.

OS: Windows 7 64-bit
Outlook 2007
Event log error:

Event ID: 1000
Faulting application name: OUTLOOK.EXE, version: 12.0.6607.1000, time stamp: 0x4e398dcd
Faulting module name: OUTLOOK.EXE, version: 12.0.6607.1000, time stamp: 0x4e398dcd
Exception code: 0xc0000005
Fault offset: 0x009ed2c6
Faulting process id: 0x1854
Faulting application start time: 0x01ccc0d1e5fd0f6d
Faulting application path: C:\Program Files (x86)\Microsoft Office\Office12\OUTLOOK.EXE
Faulting module path: C:\Program Files (x86)\Microsoft Office\Office12\OUTLOOK.EXE
Report Id: 29773c79-2cc5-11e1-93c8-001fc66fb670

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I would try to repair your OST file just in case of corruption. Also, repair the Office installation by going to control panel --> program features--> office 2007 then click on the change button.

Let me know if either method helps
SBSWIZARDAuthor Commented:
Tried both and neither method worked. I have also checked that the latest updates have been installed for Office.

Start Outlook once with the following 2 command switch and check.

outlook /resetnavpane
outlook /cleanfreebusy


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First check you have the Latest SP installed
Office 2007 SP3

Now considering it works for a while in Safe Mode...

This would indicate that there is an Add-In Affecting it.
You may not be able to disable off of them via outlook
So you have to look in the Registry


Note the add-ins listed here
Note their load behaviors

Once noted, set them all to 0

Open outlook and test
SHould see that it works fine
If its working fine
Close outlook and go back to registry
Set only 1 of the addins back to their previous setting

Open OUtlook and Test
If okay, continue the process until you find the one thats causing the issue
SBSWIZARDAuthor Commented:

outlook /resetnavpane
outlook /cleanfreebusy

And neither of these methods worked.

The latest service pack is installed and I double checked on all updates. Looked in the registry and found only one addin


Set the behavior to 0 and restarted Outlook. No go. Still could not create a new email running in normal mode. Reset the behavior back to default.
SBSWIZARDAuthor Commented:
I seemed to have resolved the issue.

I renamed the extend.dat and outcmd.dat to .old and restarted Outlook. I was able to successfully create new emails/respond/forward.

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SBSWIZARDAuthor Commented:
Found the outcmd.dat and extend.dat were corrupted. Renamed the extensions to .old and launched Outlook. Issue was resolved.
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