I myself found a list @ http://msdn.microsoft.com/library/aa372057.aspx
from this page:
AdminToolsFolder . The full path to the directory containing the administration tools.
AppDataFolder The full path to the Roaming folder for the current user.
CommonAppDataFolder The full path to the application data for all users.
CommonFiles64Folder . The full path to the predefined 64-bit Common Files folder.
CommonFilesFolder The full path to the General Files folder for the current user.
DesktopFolder . Full path to the desktop folder.
FavoritesFolder The full path to the Favorites folder for the current user.
FontsFolder Full path to the Fonts folder.
LocalAppDataFolder . The full path to the folder containing local (non-isolated) applications.
MyPicturesFolder The full path to the Pictures folder.
PersonalFolder The full path to the Documents folder for the current user.
ProgramFiles64Folder . The full path to the predefined 64-bit Program Files folder.
ProgramFilesFolder The full path to the predefined 32-bit Program Files folder.
ProgramMenuFolder The full path to the program menu folder.
SendToFolder The full path to the SendTo folder for the current user.
StartMenuFolder The full path to the Start menu folder.
StartupFolder Full path to the startup folder.
System16Folder The full path to the folder for 16-bit system DLLs.
System64Folder The full path to the predefined System64 folder.
SystemFolder The full path to the System folder for the current user.
TempFolder The full path to the Temp folder.
TemplateFolder The full path to the Template folder for the current user.
WindowsFolder The full path to the Windows folder.
WindowsVolume Windows folder size.