xsd.exe, a command line tool from Visual Studio, is able to generate .net net classes for the bit repository messages using the xsd's. Imports in xsd's are not handled automatically, so both BitRepositoryMessages.xsd and BitRepositoryElements.xsd need to be mentioned.

The documentation for xsd.exe can be found here: http://msdn.microsoft.com/en-us/library/x6c1kb0s(v=VS.100).aspx