1. Possible "Special folders":
%SF:ALTSTARTUP%              File system directory that corresponds to the
                             user's nonlocalized Startup program group.

%SF:APPDATA%                 File system directory that serves as a common             
                             repository for application-specific data.                 

%SF:BITBUCKET%               File system directory containing file objects
                             in the user's Recycle Bin. The location of
                             this directory is not in the registry; it is
                             marked with the hidden and system attributes
                             to prevent the user from moving or deleting
                             it.

%SF:COMMON_ALTSTARTUP%       File system directory that corresponds to the
                             nonlocalized Startup program group for all
                             users.

%SF:COMMON_DESKTOPDIRECTORY% File system directory that contains files and
                             folders that appear on the desktop for all
                             users.

%SF:COMMON_FAVORITES%        File system directory that serves as a common
                             repository for all users' favorite items.

%SF:COMMON_PROGRAMS%         File system directory that contains the
                             directories for the common program groups
                             that appear on the Start menu for all users.

%SF:COMMON_STARTMENU%        File system directory that contains the
                             programs and folders that appear on the Start
                             menu for all users.

%SF:COMMON_STARTUP%          File system directory that contains the
                             programs that appear in the Startup folder
                             for all users.

%SF:COOKIES%                 File system directory that serves as a common
                             repository for Internet cookies.

%SF:DESKTOPDIRECTORY%        File system directory used to physically
                             store file objects on the desktop (not to be
                             confused with the desktop folder itself).

%SF:FAVORITES%               File system directory that serves as a common
                             repository for the user's favorite items.

%SF:HISTORY%                 File system directory that serves as a common
                             repository for Internet history items.

%SF:INTERNET_CACHE%          File system directory that serves as a common
                             repository for temporary Internet files.

%SF:NETHOOD%                 File system directory containing objects that
                             appear in the network neighborhood.

%SF:PERSONAL%                File system directory that serves as a common
                             repository for documents.

%SF:PRINTHOOD%               File system directory that serves as a common
                             repository for printer links.

%SF:PROGRAMS%                File system directory that contains the
                             user's program groups (which are also file
                             system directories).

%SF:RECENT%                  File system directory that contains the
                             user's most recently used documents.

%SF:SENDTO%                  File system directory that contains Send To
                             menu items.

%SF:STARTMENU%               File system directory containing Start menu
                             items.

%SF:STARTUP%                 File system directory that corresponds to the
                             user's Startup program group. The system
                             starts these programs whenever any user logs
                             onto Windows NT or starts Windows 95.

%SF:TEMPLATES%               File system directory that serves as a common
                             repository for document templates.

2. Registry examples:
Program Files:
%reg:HKLM\Software\Microsoft\Windows\CurrentVersion\ProgramFilesDir%

My Documents:
xcd:%reg:HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders\Personal%

My Pictures:
%reg:HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders\My Pictures%
