Command Line short-cut variables

%windir% = value from GetWindowsDirectoryW
%systemroot% = value from GetWindowsDirectoryW
%systemdrive% = first two characters from GetWindowsDirectoryW
%systemdir% = value from GetSystemDirectoryW
%username% = value from GetUserNameW
%programfiles% = value from ShGetFolderPathW(..., CSIDL_PROGRAM_FILES, ...)
%userstartmenu% = value from ShGetFolderPathW(..., CSIDL_STARTMENU, ...)
%allstartmenu% = value from ShGetFolderPathW(..., CSIDL_COMMON_STARTMENU, ...)
%userdesktop% = value from ShGetFolderPathW(..., CSIDL_DESKTOPDIRECTORY, ...)
%alldesktop% = value from ShGetFolderPathW(..., CSIDL_COMMON_DESKTOPDIRECTORY, ...)
%userfavorites% = value from ShGetFolderPathW(..., CSIDL_FAVORITES, ...)
%allfavorites% = value from ShGetFolderPathW(..., CSIDL_COMMON_FAVORITES, ...)
%userappdata% = value from ShGetFolderPathW(..., CSIDL_APPDATA, ...)
%allappdata% = value from ShGetFolderPathW(..., CSIDL_COMMON_APPDATA, ...)
%allusersprofile% = value from GetAllUsersProfileDirectoryW
%userprofile% = value from GetUserProfileDirectoryW
%appexedir% = value from GetModuleFileNameW