Outlook 2000 slow startup speed

Posted on 2009-02-17
Last Modified: 2012-05-06
We've been experiencing some slow startup speed with Outlook 2000. Sometimes, mainly the first time after logging in, we start outlook and it takes a while (up to 20-30 seconds) before we see the main screen with the list of messages. If we close Outllok and restart it, it opens instantaneously.

Does anyone know why it is so slooowwww  the first time ?

Outlook 2000 (Office 2000) is running on a laptop HP NC6230 with Windows XP SP3 and 512 MB RAM. That is the only app running, but this occurs on other machines as well.

Setup is Internet mail with a PST file (about 500 MB) located on a network share on the main file server (no speed change by copying the file locally).

I can see lots of disk activity when Outlook is starting up.
Question by:rjjacques
    LVL 97

    Accepted Solution

    Hello rjjacques,

    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 outlprnt files. Restart Outlook.

    Outcmd.dat is located in C:\Documents and Settings\\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.

    If you cannot open Outlook, do a search for and rename extend.dat file.

    4. Check if an external program running in the background is interfering with Outlook. Check Firewall, antivirus and other security programs, Yahoo and Google toolbars, and desktop search programs. Disable these programs one at a time.

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

    6. If no joy, repair Outlook with this free utility -  OLfix

    7. If no joy, create a new Outlook profile.

    8. 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.

    Hope this helps!

    Author Closing Comment

    hi war1,

    Here's what happened when trying your various points
    1) Looks like I already tried that one before, since the file was already renamed in the folder. No joy, as you say
    2) Did that,though I had to be admin to register inetcomm. No joy
    3) Ah, add-ins !! I had 4 of them: Net Folders, Internet mail and exchange extensions property pages (all 3 looks essentials to do anything with outlook), and OUTLOOK SCAN, the McAFee VirusScan Enterprise on-demand scanner for Outlook. Well, anti-virus are notoriously know to I disabled that one only. Bingo ! No more speed issues.

    So it appears to me that the first time it is invoked this Outlook scan component takes quite some time to load or scan or whatever happens then (that's now a question for Mcafee).

    I tried opening Outlook after logoff and reboot, both showed instantaneous startup of Outlook.

    For now, we'll live without on-demand scan; the on access scan is still enabled (using Viruscan Enterprise 8.7i)


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