Update: i've fixed the registry key for the recent files. ironically in my VS Tips talk today in Denmark, in the handout, i had a typo in the handout where I put "Recent" instead "Project" for the project MRU.

This blog post has moved to http://saraford.net/2008/12/04/did-you-know-how-to-remove-items-from-the-recent-projects-and-recent-files-menus-371/