zip加密解密 http://www.codeproject.com/KB/files/zip_utils.aspx这有作者比较详细的说明,These files are a simple way to add zip/unzip functionality to your windows programs, both win32 and windows-ce.

使用NET和CSharp编程，可以根据输入的模板格式和加密解密字符实现软件许可文件的自动生成-This article is about a license key generation program. As you know when you get a software package it usually requires a license key. The keys that are generated show various pieces of information, such