If you need to decompile a .dll or just fancy taking a nose at somebody else’s code then you need to download JustDecompile. It’s free, easy to use and very fast. Telerik have done themselves proud with this tool.
I always found reflector a bit heavy for most things I needed to do and I was recommended JustDecompile. It was one of the best recommendations I have been given. There is very little support online for this tool but here are a few posts I have found.
Go ahead and give it a go. You can download it from http://www.telerik.com/products/decompiler.aspx