Microsoft KB Archive/100955

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WfW Client Returns Invalid Drive Error

Article ID: 100955

Article Last Modified on 9/30/2003


  • Microsoft LAN Manager 2.2 Standard Edition

This article was previously published under Q100955


When using FoxPro 2.0 off of a LAN Manager server share, only one Windows for Workgroups (WfW) client can access the share. The second WfW client gets an "invalid drive" error when it tries to access FoxPro. The following action resolves the problem:

Add SRVHEURISTICS=0XXXXXXXXXXXXXXXXXXX line in the [server] section of LANMAN.INI file. The "0" option is used to turn off the "Request opportunistic locking" when opening files to make the server service seems like the only application running on the server.

Then run the LM csd00.018 with WfW.


"LAN Manager Administrator's Reference," page 259

Additional query words: wfw wfwg

Keywords: KB100955