>the file name is les pinter's security system..file no. 013393
>
>and also the security.mpr is missing

I guess it's file#9386. You can try to contact the author of the download directly.

Anyway, there's article by Les Pinter describing original Security System http://msdn.microsoft.com/archive/default.asp?url=/ARCHIVE/en-us/dnarfoxgen/html/msdn_security.asp. I hope it'll help you to find solution to your problem.