Hello,
The program you are trying to use is to old to work on any current Windows version. I'm not sure if Pif is supported anymore, but anyway Pif is just a shortcut to another program. Double click on the pif file won't open it, but you can open this program directly in any dos emulator.
So... Install a Dos emulator, let say DosBox (
http://www.dosbox.com/[
^])
Once you have DosBox running you must enable access to your disk drive, to do this use the Mount command:
Z:\>MOUNT C C:\OLDDOS
Drive C mounted as local directory C:\OLDDOS\
Then you just start the program as you would have done 20 years ago by typing it's name at the prompt:
For example:
C: <enterkey>
Qbasic.exe <enterkey>
Etc...
Valery.