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Outlook 2003 100% CPU usage

Posted on 2007-08-02
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Last Modified: 2009-09-23
Outlook 2003 starts to eat 100% of the CPU cycles a short while after being started. Hard drive churns away constantly. Seems to be a recent development
This is NOT on a Dell laptop (saw that "fix", nothing to uninstall there)
Uninstalled & re-installed Office 2003.
Starting in "outlook today" helps for a while, but sooner or later it starts doing it.
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Question by:bilbodad
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war1 earned 2000 total points
ID: 19617330
Greetings bilbodad !

1. Reset the Outlook toolbar template. With Outlook close, do a search for and rename outcmd.dat file. Do the same for frmcache.dat and outprnt files. Restart Outlook.

Outcmd.dat is located in C:\Documents and Settings\<user>\Application Data\Microsoft\Outlook folder. It is a hidden file, so you have to unhide hidden files. Go to any folder and select Tools > Folders Options > View. Check "Show hidden files and folders". Click OK.

2. If no joy, register two important Outlook files. Go to Start > Run and type regsvr32 OLE32.DLL
Do the same for INETCOMM.DLL

3. If no joy, an addin could be interfering. Disable Outlook Addins.  Go to Tools > Options > Other > Advanced Options > Addin Manager or COMM/Addins and disable the addins.

4. Check if an external program running in the background is interfering with Outlook. Check Firewall, antivirus, antispyware, antispam, and all Norton programs. Disable these programs one at a time.

5. If no joy, create a new Outlook profile.
http://www.outlook-tips.net/howto/profile.htm

6. Repair Outlook. With Outlook open, go to Help > Detect and Repair.

7. If no joy, reinstall Outlook.  Go to Add/Remove Programs and highlight Microsoft Office. Click on Install/Uninstall.  A menu will pop allowing you to choose repair or reinstall.

Best wishes, war1
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by:bilbodad
ID: 19625975
Thanks! Seemed to finally get success withe the "disable addin" route. In my case for some reason it seems to have been Qurb (anti-spam) which for some reason had decided to start eating CPU cycles. Don't see the problem now (for about 24 hours).
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by:war1
ID: 19626011
bilbodad,

Glad you found the source of the problem.  You can add back one addin at a time to find out which is causing the problem.
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