a asp.net code to compress or uncompress zip files online, it has been test. This version needs register code, but be free. additionally, register code is easy to obtain: encrypt you domain, like www.baidu.com, by MD5, then rerank the order. A newer version doesnot need register code, but I didn t find it.-a asp.net code to compress or uncompress zip files　online, it has been test. This version needs register code, but be free. additionally, register code is easy to obtain: encrypt you domain, like www.baidu.com, by MD5, then rerank the order. A newer version doesnot need register code, but I didn t find it.