@doohoodogg - the best archiver for InstallShield packs is surely WinPack 3 (don't mistake with other WinPack programs, LOL) which you can get here:
http://snoopy81.ifrance.com/snoopy81/en/winpack.htm
just my remark - even starforce 3.6 on splinter cell 3 was confirmed to work properly on a dvd+rw disc so it's probably a glitch of the protection from which you can make use