Hello Bruno, > I'd like, in a WIN32 environment, list all open files. > Anyone got a clue how to do this ? Have a look at the sysinternals suite (http://technet.microsoft.com/en- us/sysinternals/0e18b180-9b7a-4c49-8120-c47c5a693683.aspx), you might find stuff there that will help you. HTH, -- Miki <miki.tebeka at gmail.com> http://pythonwise.blogspot.com