Guys: I have been working on AV driver using AVStream framework for a long time. I always know that there is an exiting windbg external module ks which contains some amazing functions. But it requires the private symbol for ks.sys and for that I never have chance to use !ks commands. I really know that it's not easy to get private symbol from MS. But I still want to know, is there a police about who and how can get a private symbol from MS? Thanks!