Great article. If you want to know more about Windows memory layout here's a couple of great books:

http://technet.microsoft.com/en-us/sysinternals/bb963901

http://www.amazon.com/Windows-File-System-Internals-Develope... (Yes it's about file systems but it's an awesome book about Windows internals)

http://www.amazon.com/Windows-Device-Development-Classic-Rep...