这个压缩程序，可以对可执行文件进行压缩，里面有详细的说明文档，欢迎大家提出宝贵的意见。-UPX is a portable, extendable, high-performance executable packer for

　　several different executable formats. It achieves an excellent

　　compression ratio and offers**very** fast decompression. Your

　　executables suffer no memory overhead or other drawbacks for most of the

　　formats supported, because of in-place decompression.