ASPack is an advanced Win32 executable file compressor, capable of reducing the file size of 32-bit Windows programs by as much as 70% (ASPack's compression ratio improves upon the industry-standard zip file format by as much as 10-20%) ASPack makes Windows 95/ 98/ NT/ 2000 programs and libraries smaller, and decrease load times across networks, and download times from the Internet; it also protects programs against reverse engineering by non-professional hackers.Programs compressed with ASPack are self-contained and run exactly as before, with no runtime performance penalties.