1)   nspack 3.7 Support for 64-bit exe,dll,ocx and scr files. Support compressing .NET executable file. Completely support recompressing the program compressed by commonly-used software such as Upx, Aspack, Pecompact, etc.. 2)   PECompact 2.75 An executable compressor, PEC compresses Windows modules (EXE, DLL, SCR, etc..) substantially, while leaving them able to be run just as before. At runtime, compressed modules are rapidly decompressed in memory. PEC is a truly modern exe packer. 3)   PECompact 2.75 PECompact compresses Windows modules (EXE, DLL, SCR, etc..) substantially, while leaving them able to be run just as before. At runtime, compressed modules are rapidly decompressed in memory. PECompact is indeed a next generation exe packer.