Dear Charles: Thank you very much for the advise regarding the blackslash issue. This advice will get me to the proper: /Users/tpatko/.wine/dosdevices/z:/Users/tpatko/Applications/Firefly/BENCH1.out versus the stripped /Users/tpatko/.wine/dosdevices/z:/Users/tpatko/ApplicationsFireflyBENCH1.out That is certainly a step in the right direction. I appreciate the tip. Is there a way to get all the way to the correct path shown below? /Applications/Firefly/Bench1.out In sort, is there an option in the winepath call or a change to the source that will automatically drop the preceding wine portion of the path that is not needed for Mac systems calls. How did I strip: /Users/tpatko/.wine/dosdevices/z:/Users/tpatko out of the returned path? I am working on something that will be used by other users besides myself, so it would need to systematically strip out this preceding portion on any given user's machine. Thanks, Thomas