.NET Reflector 2011 2月已经结束提供免费版本，催生了另一个开源的项目ILSpy。
ILSpy的主要特点如下：
- Assembly browsing
- IL Disassembly
- Decompilation to C#
- Saving of resources
- Search for types/methods/properties (substring)
- Hyperlink-based type/method/property navigation
- Base/Derived types navigation
- Navigation history
工具更多信息及下载：http://wiki.sharpdevelop.net/ilspy.ashx