Limitations:
Trial version can decompile only few .NET Framework assemblies
Editors Note
Affordable decompiler for Microsoft .NET managed applications and libraries with inline editing functions. Besides the normal decompiling functions it will also let you to edit local variables in the decompiled code and to manage a record of changes in the project file. Key features include ability to generate source code with decimal and hexadecimal numeric constants, deobfuscator, auto decompile mode etc.