More than 3 decades of experience creating innovative system and security architectures that have advanced the commercial and research state-of-the-art -- as evidenced by more than 50 patents, 11 IETF RFCs, and 13 other publications (only a selection of which are represented below).

Example achievements:
-- design and implementation of first distributed shared memory
-- architecture, protocol design and IDL design of world's most widely used RPC (OSF DCE/Microsoft)
-- Windows transport strategy
-- architecture of the Windows 8 sandbox
-- architecture of Windows 8 Dynamic Access Control
-- architecture of Windows authentication: Kerberos delegation, cross-forest, compound ID, claims support