>Rick,
>
>Every time I run the code, the winzip screen appears. What I want to happen is the system will process the file. I don't want to depend on the user making a selection of which file to unzip....any clues? What does the NOR parameter mean?

The NOR parameter is part of the call to Ed Rauh's API_AppRun class. It means show the window 'normal'. If you don't want to see the WinZip window try passing HID to hide the window (I haven't tried this, but it's documented). If that doesn't work you could at least minimize the window by passing MIN. In any case, my WinZip example was intended for cases where you want to extract the entire contents of the zip file, so the user doesn't have to make any selections.