3 ms·I don't recall Microsoft using anything open source.by Raphael 16y agoI don't recall Microsoft using anything open source.melling 16y agoJQueryWalterGR 16y agoYou'll find many references in the following. http://www.google.com/search?q=microsoft+uses+open+source http://www.google.com/search?q=microsoft+uses+open+source