Sorry,
I mean http://msdn.microsoft.com/library/default.asp?url=/library/en-us/fileio/filesio_2cv9.asp

Remarks
Windows 98/Me: GetLongPathNameW is supported by the Microsoft Layer for Unicode. To use this, you must add certain files to your application, as outlined in Microsoft Layer for Unicode on Windows 95/98/Me Systems(http://msdn.microsoft.com/library/en-us/win32/unilayer_4wj7.asp).

In VFP you should declare the Platform SDK unction this way:

Declare Long GetLongPathName in Kernel32.DLL ;
   String @ lpszShortPath, ; && file name
   String @ lpszLongPath,  ; && path buffer
   Long cchBuffer            && size of path buffer

Sample usage:

ShortPath = 'C:\progra~1'
LongPath = Space(1000)
PathLen=GetLongPathName(ShortPath, @LongPath, 1000)
LongPath = Left(LongPath, PathLen)

HTH