I didn't find a way to delete projects from my Recent Projects List in visual studio 2005, so I made this Add-In to manage them.
Place the 2 files in the RecentProjectsManager.zip (Attached) into the Add-In folder:
MyDocuments\Visual Studio 2005\Addins
Load the visual studio, click "Tools" and then "Recent Projects Manager"
Please let me know about any problems you encountered: firstname.lastname@example.org