VB.NET编写的串口通讯程序,利用windows API.

一份关于7z 解压缩源码，可以解压缩rar、7z加密的文件-A source on decompress 7z can decompress rar, 7z encrypted files

智能生成对账单excel,并压缩文件,然后多线程发送邮件带测试附件（知识点：多线程,操作Excel,读取Ini配置,Smtp发邮件及配置,调用7z.dll压压缩类）-Smart Generator statement excel, and the compressed file, and then send the message multithreading (knowledge points: multi-threaded operating Excel, read Ini configur

spring.net的2.0.0版本，预发布，做了大量更新，支持.net 4.0，可以使用VS2010编译等等。7z压缩，体积最小化。(The 2.0.0 version of spring.net, pre released, has done a lot of updates to support.Net 4, you can use VS2010, compile, and so on.)