I have two users that are having the same problem. They both run win95 and use Outlook 2000 on a Novell network.
Not all the time, but on a daily basis, when they click on a piece of mail they get the following error:
The required file urlmon.dll can't be found in your path, please reinstall Outlook
I reinstalled Outlook but the error message came back.
One of the PC's was recently reformatted because of other error messages in Outlook that couldn't be fixed. Both machines has PGP security software and an updated Mcafee virus scan program.