How to search a class in list of jar files

Hi All,
I am using Windows XP. I have some 100's of jars and I want to find in which jar file a particular class exists. The search option in Windows XP (except Windows 2000) doesn't help. I tried the sourceforge.net jarbrowser tool but it's search functionality is not working.
Can anybody please suggest a nice tool or approach ...
Thanks & Regards,
Kr.

I know of one named ClassFinder that will do what you want.

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