Development Manager in Windows at Microsoft.
Rule 1 of software questions: Call stacks are way more useful than you think they are. Always post the whole callstack of crashes. Often otherwise.
A bit of history: http://www.seanet.com/~martynl/aboutme.html
A reminder - everything posted here is my personal opinion, not that of Microsoft or of anyone else. These postings are provided "AS IS" with no warranties, and confer no rights.