To use this version of PCSpim:
    1. Extract the zip file to somewhere on your hard drive.
    2. Launch PCSpim.exe
    3. You will see a dialog saying:
        The exception file specified in the Settings dialog does not exist.
        Please specify an existing file, or turn off exception file loading.
        
        Would you like to open the settings dialog?
    4. Click the Yes button.
    5. At the bottom of the window that appears click the Browse button.
    6. Navigate to where you extracted the zip file to and select the "exceptions.s" file.
    7. Click OK.
    
PCSpim will open and should work.

Good Luck ~ YMMV!