I have used two GUIDs to open the folders My Computer and My Documents.
Process.Start(\"iexplore.exe\", \"::{20d04fe0-3aea-1069-a2d8-08002b
Have you tried:
Process.Start("explorer.exe", "::{20d04fe0-3aea-1069-a2d8-08002b30309d}"); Process.Start("explorer.exe", "::{450d8fba-ad25-11d0-98a8-0800361b1103}");
?