Hmm...I wonder if there would be any issue with Microsoft using any Linux code. I don't think there is any rule in the GNU license that would prohibit them from using the code. I think they just need to give proper credit to the people who wrote the original code, the people who made changes to the code under GNU and lmake the source code available. I don't think Microsoft is ready for that final step yet. Is anyone more versed in GNU and Open Source around here?