Software by North Star:

NSPack is an advanced Win64/32/.NET executable file compressor, capable of reducing the file size of 64-bit and 32-bit Windows programs by as much as 60%. (NSPack's compression ratio improves upon the industry-standard zip file format by as much as 10-20%.) NSPack makes Windows 95/98/NT/2000/XP/2003 programs and libraries smaller, and decrease load times across networks, and download times from the internet.