I have come across similar problems on Windows Servers over the years in a couple of cases: 1 - Data Files (non-database in this case) that have been updated and finished with and closed may remain open or in use as far as the Server goes. Sometimes this times out after a few minutes and the file does become not in use. Sometimes it has to be closed manually on the server (Control panel/Administrative tools/Shared files/Open Files allows one to manually browse and close an open connection). Sometimes even more puzzling is a file remaining with a locked block (a file open for shared read/write) long after the updates have finished. Same solution. Incidentally I discovered There is a useful Windows command line variant of the Administrative Tools GUI - OPENFILES /Disconnect /O Read/Write (+ other options)
but haven't yet have had a chance to find out if that only deals with files opened from this workstation or for any workstation or whether it can be used from a workstation to close files on the server. 2 - Zip file archives that get deleted after a time (usually weeks after created) sometimes fail to delete - using the same DeleteFile call as you used. I have not figured out yet why these fail to delete, but they are on a Windows server again. I am most interested to hear anyone shed light on this! John
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