K 10 svn:author V 3 jfv K 8 svn:date V 27 2013-08-20T17:50:30.737466Z K 7 svn:log V 240 MFC r254008,254262: Improve the MSIX setup logic, making sure the requested number of vectors are actually obtained, and if not cleaning up before falling back to MSI. Also make the fallback decision as early as possible. Approved by: re END