Neither the official documentation nor the object browser in Visual Studio showed me how to access Windows Media Player recent files playlist? Or the frequent items?
i.e. the one's that can be witnessed in the Windows 7 jump-list How To Display Recent Files Instead Of Frequent Files In Windows Media Player Jump List http://www.intowindows.com/how-to-display-recent-files-instead-of-frequent-files-in-windows-media-player-jump-list/
WMP Docs
Playlists and the PlaylistCollection Object http://msdn.microsoft.com/en-us/library/windows/desktop/dd564122(v=vs.85).aspx
Static and Auto Playlists http://msdn.microsoft.com/en-us/library/windows/desktop/dd564402(v=vs.85).aspx
Playlists and the MediaCollection Object http://msdn.microsoft.com/en-us/library/windows/desktop/dd564121(v=vs.85).aspx