General OE Caveats:

- Don't use Inbox or Sent Items to archive messages. Move them to local
folders created for this purpose.

- Empty Deleted Items folder daily.

- Disable Background Compacting [N/A in SP2] and frequently perform a manual
compact of all OE folders while "working offline". More at
http://www.insideoe.com/files/maintain.htm.

- Do not attempt to close OE via Task Manager or shutdown your machine if
Automatic Compacting is taking place (WinXP SP2 only).

- Your anti-virus application's email scanning feature can also cause
corruption. Disable it. It provides no additional protection.

--
~Robear Dyer (PA Bear)
MS MVP-Windows (IE/OE, Shell/User, Security), Aumha.org VSOP, DTS-L.org

Walter Seaton wrote:
When logging off Outlook Express I frequently (not always) get the
following error message:
msimn.exe - Application Error The instruction at "0x77f58d2c"
referenced memory at "0x009b4818". the memory could not be "written".
Click on OK to terminate the program. The first string also sometimes
appears as "0x77f83aed" and "0x7708905".
Help on resolving this will be much appreciated.