He has worked on the Microsoft .NET Runtime (C# platform) since its inception over 10 years ago. He has been involved in performance work and is the author of the PerfView performance tool available on the web. He has written numerous articles/blog entries on performance and code instrumentation for the Windows OS. Vance is enthusiastic about teaching the next generation of programmers and has been involved in the TEALS program that teaches high school students about programming. In Prime Factor, Vance teaches “Program Now! An Accelerated Introduction to Computer Programming and Architecture” for students in grades 9-10.