Hi Fred,

Not exactly a solution but somewhat close -- Using File Mapping for enumerating files opened by Visual FoxPro
http://www.news2news.com/vfp/?example=473

This routine enumerates all files opened in current VFP session.

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CreateFileMapping API function operates with system file handles. As far as I know, VFP file handles (i.e. returned by FOPEN()) are pseudo-handles. And the relation between them and the system files handles is kept hidden from developers.