XP下最难找之驱动-------USB - serial controller ，找了一下午-one of XP drivers ,most difficult to find .

USB转232的XP驱动程序，经过测试已经通过了，同志们可以放心使用，这个版本是最新的版本-USB to the XP driver 232, after the test has passed and comrades can rest assured that the use of, this version is the latest version