>We finaly found it!!!
>
>Remember me?
>
>We have about 25 users with FoxPro DOS 2.6a on a NT4 Server and we had all kind of locking problems plus many unrequested "file access denied".
>
>Well, one user had installed OUTLOOK XP on his station. He uninstalled it and... magic... no more problem!!
>
>So, Al, we are now running without any SHARE command and it works perfectly. I thought you would like to know that. FoxPro manage all locks by itself.
>
>Thanks for your replies.

Glad you found it. I never would have thought to try that. If it's reproducible (i.e. it would happen again if you reinstalled Outlook XP) Microsoft might be interested in knowing about it.

Yes, I thought SHARE was a red herring. It was only needed up to Windows 3.x on DOS. Any later version loads a VxD (VSHARE) which accomplishes the same thing.