Can you give more detail on that? Is it an actual crash or just an error message?
If it is an actual crash, please collect and send the crash dump data to GPSoftware so they can pin it down.
I was only able to reproduce an error message, which I think is due to the script using the VBScript Join function in the wrong way. Running the script from a DOS prompt, and changing the WShell.Run into WScript.Echo, shows some invalid paths and incorrect quoting being generated:
The script also assumes that directories never have extensions and files always have them, both of which aren't always true.
I guess it doesn't really matter if the DOS version is working now, but if there was an actual crash (not just an error message) then it'd still be good to get the details to GPSoft so whatever is behind it can be fixed. (Even if the input is bogus, it shouldn't crash anything.)