Installation instructions specific to Windows operating systems. If you are running ActivePerl, the best place to get this is from one of their PPM repositories. But if you did that, you're not reading this now. So: The usual incantation should work, but in lieu of 'make' you need to issue the command 'nmake'. If you don't have 'nmake' you can get it from ftp://ftp.microsoft.com/Softlib/MSLFILES/nmake15.exe If you want to do a "drag and drop" install, create the directory Games\Sudoku under your site library directory, and put General.pm in it. You convert the executable to a .bat file by CD-ing to the bin directory of the expanded kit, and running c:\whatever\bin\> pl2bat sudokug after which you put the resultant .bat file in a folder that is on your PATH.