comparison - What is the best way to compare 2 folder trees on windows? -

I'm taking a repository to reverse the source file and I have to make sure that important points are the same. Is this an existing command / tool for windows that allows me to compare two folder trees that they are equal (files of the same folder structure and similar content)? Ideals would be like command-line:

  some_cool_compare c: \ current_vss c: \ current_svn -exclude .svn; *. Vspscc; * .scc  

Is this some device / command present or do I have to write a script of my own?

If you can use the GUI tool, the best I tried - open source.

If not, then your friend is there.