As is true for virtually all Windows programs, it is not sufficient to simply copy the Pretty Good Solitaire program directory to get a working copy of the program. The setup program installs vital support files and registry entries. The original setup program must be run in order to install the program.
If you don't still have a copy of the original setup installation file you can download the latest trial version from our download page. If you are registered, you can then use your registration code to register it. If you don't still have your registration code, go to our Lost Code Lookup page to request that it be sent to you again.