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. Smaller (<50%) size usually means quicker load time. Compression also adds a layer of security to modules that resists tampering and reverse engineering. PECompact is a truly modern exe packer / exe compressor.