UPX 是一款先进可执行程序文件压缩（电脑用语：指将文件打包为zip｜rar｜tar等多种格式）器 压缩（电脑用语：指将文件打包为zip｜rar｜tar等多种格式）过可执行文件体积缩小50%-70% 这样减少了磁盘占用空间、网络上传下载时间与其它分布以及存储费用。 通过 UPX 压缩（电脑用语：指将文件打包为zip｜rar｜tar等多种格式）过程序与程序库完全没有功能损失 与压缩（电脑用语：指将文件打包为zip｜rar｜tar等多种格式）之前一样可正常地运行对于支持大多数格式没有运行时间或内存不利后果。
UPX 支持许多不同可执行文件格式
包含 Windows 95/98/ME/NT/2000/XP/CE 程序与动态链接库、DOS 程序、
Linux 可执行文件与核心。

UPX is compressor of document of an advanced executable course had compressed executable file bulk to narrow 50%-70% reduced disk to take up space, network uploads download time and other to distributing so and memory charge. Had compressed program and library to do not have a function completely through UPX loss and most to support format can move normally euqally before compressing adverse without run time or memory consequence.
UPX supports forms of a lot of different executable file
Include program of Windows 95/98/ME/NT/2000/XP/CE program and dynamic link library, DOS,
Linux executable file and core.