See this fairly recent discussion about this WinXP SP3-specific problem:
http://groups.google.com/group/micro...d35fbfa457fd6f

For reference, here's a list of things which are known to cause this
behavior (which is NOT being seen by the vast majority of OE users):

• Various & sundry anti-virus applications (including Norton);
• Various & sundry anti-spyware applications;
• Various & sundry third-party firewalls;
• Any/all of the above running when WinXP SP3 was installed;
• IBM Rapid Access keyboard (driver) RAKDLL.DLL;
• Nero plug-in(s);
• Windows (Desktop) Search is installed [FIX: Uninstall it or disable
indexing of OE data];
• Windows Live Mail is or had been installed;
• Disk defragmentation, need for;
• Using Visual Basic DoCmd.SendObject command to create an email;
• Using any number third-party applications (e.g., accounting software) to
send emails by via Outlook Express;
• MailWasher; and/or
• Programatically opening EML files while OE is closed (e.g., creating a
New Message via Address Book).
--
~Robear Dyer (PA Bear)
MS MVP-IE, Mail, Security, Windows Desktop Experience - since 2002
AumHa VSOP & Admin http://aumha.net
DTS-L http://dts-l.net/

JWHData wrote:
How do I stop this message from popping up every few minutes

"free up disk space, outlook Express can compact messages"

I don't even have Outlook Express installed