加密工具，反DUMP，反调试，反编译，加密代码资源内容，混淆流程，变量。
Confuser is a protector/obfuscator for .NET, providing great security to .NET Applications.

Features:

Anti debugger
Anti memory dumping
Anti decompiler
Prevent any tampering of the assemblies
Encrypt codes
Encrypt constants (i.e. numbers & strings)
Encrypt resources
Control flow obfuscation
External/Internal reference proxy
Renaming
编译版
http://confuser.codeplex.com/releases/view/90044
源码
http://confuser.codeplex.com/SourceControl/BrowseLatest

.NETPE文件查看器

This project's development has stopped. Hope someone can join the development of this project!!!

Previews:

编译版
http://netpe.codeplex.com/releases/view/44227
源码
http://netpe.codeplex.com/SourceControl/BrowseLatest

.NET高度压缩捆绑工具
Rugland Packer for (.Net) eXecutables ZIP压缩率
编译版
http://rpx.codeplex.com/releases/view/80715
源码
http://rpx.codeplex.com/SourceControl/BrowseLatest
另一个同类工具，压缩率更高，7Z压缩，反常规反编译工具逆向
Exepack.NET
编译版
http://exepack.codeplex.com/releases/view/41898
源码
http://exepack.codeplex.com/SourceControl/BrowseLatest