I am trying to read some PS files that I have downloaded. I followed the link to that Wisconsin site that has the software: http://www.cs.wisc.edu/~ghost/gsview Since I am using Windows XP, I downloaded the following: Ghostscript 8.11 gs811w32.exe GSview gsv45w32.exe I saved them both to the Desktop, and tried to open a PS file, but my computer still says that it doesn't know what program created the file. Do I need to save both files in the same folder? Or somewhere other than the Desktop? What's happening here?