Real Player

RealPlayer V7 installed Comet Cursor causing invalid page faults in user <unknown> or shlwapi.dll

Comet Cursor
http://www.cometsystems.com/help/real_privacy.shtml

Download Comet Cursor cleaner:
http://files.cometsystems.com/cometcursor/Comet_Uninstaller.exe

Make sure you are not prompted to install Comet Cursor again

http://download.cometsystems.com/no_nag/nonag.asp

Below is the KB released by Microsoft regarding Comet Cursor:

Random General Protection Faults with Comet Cursor 1.5 Installed [Q281849]
http://support.microsoft.com/support/kb/articles/q281/8/49.asp

Real Player can be configured to stop attempts to record your preferences. Go to options/preferences and choose *not* to record a users "habits".

It has been noticed that Comet Cursor will cause <unknown> errors in IEXPLORE when trying to download Macromedia Flash (or even when refusing the plug-in). Uninstalling Comet Cursor has resolved the problem.