Tool to check code duplication in C#

Question

I need to check if my codes have a duplication. Is there any free application for code duplication refactoring tool for C#?

Answer 1

Check :

Simian (http://www.redhillconsulting.com.au/products/simian/), based on source code. Works with plenty languages.

Clone Detective a Visual Studio plugin (http://www.codeplex.com/CloneDetectiveVS). (It uses ConQAT internally)