ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.
One of a set of tools we're offering as a way to say thank you for being a part of the community.
http://www.csharphelp.com/2007/01/registry-ins-and-outs-using-c/
I don'yt think is it possible to export from that while it is locked by the OS