Iain is one of the most colorful characters at Microsoft. He ran the "war room" for Windows XP. Basically, any changes to the operating system had to go through him and his team -- and it all happened in this small room over in building 26.
Paul Thurrott wrote about the Windows war room
in this article on the process
of building Windows Server 2003.
Over the next week you'll get to learn a little bit more about Iain and his approach to building a product of the size of Windows (XP is now used around the world by hundreds of millions of people). We filmed the interview in the war room.
The role that Iain played in the development of XP can't be overstated. He was the guy you'd need to convince to get changes included (a new feature addition, or a bug fix, would need to be "sold" to Iain and his team).
Iain, by the way, is one of the people who came up with the code-name "Longhorn" for the next version of Windows. He admitted that it was named for the bar that's between the Whistler and Blackcomb ski resorts in British Columbia, Whistler.