Environment Variables in Group Policy preferences

%AppDataDir%

The current user's Application Data directory.

%BinaryComputerSid%

The SID of the computer in hexadecimal format.

%BinaryUserSid%

The SID of the current user in hexadecimal format.

%CommonAppdataDir%

The “all users” Application Data directory.

%CommonDesktopDir%

The “all users” Desktop directory.

%CommonFavoritesDir%

The “all users” Explorer Favorites directory.

%CommonProgramsDir%

The “all users” Programs directory.

%CommonStartMenuDir%

The “all users” Start Menu directory.

%CommonStartUpDir%

The “all users” Startup directory.

%ComputerName%

The NetBIOS name of the computer.

%CurrentProcessId%

The numeric identity of the main client process.

%CurrentThreadId%

The numeric identity of the main client thread.

%DateTime%

The current time (UTC).

%DateTimeEx%

The current time (UTC) with milliseconds.

%DesktopDir%

The current user's desktop directory.

%DomainName%

The domain name or workgroup of the computer.

%FavoritesDir%

The current user's Explorer Favorites directory.

%LastError%

The last error code encountered during configuration.

%LastErrorText%

The last error code text description.

%LdapComputerSid%

The SID of the computer in LDAP escaped binary format.

%LdapUserSid%

The SID of the current user in LDAP escaped binary format.

%LocalTime%

The current local time.

%LocalTimeEx%

The current local time with milliseconds.

%LogonDomain%

The domain of the current user.

%LogonServer%

The domain controller that authenticated the current user.

%LogonUser%

The user name of the current user.

%LogonUserSid%

The SID of the current user.

%MacAddress%

The first detected MAC address on the computer.

%NetPlacesDir%

The current user's My Network Places directory.

%OsVersion%

The operating system: Windows Server® 2008 R2, Windows® 7, Windows Server® 2008, Windows Vista®, Windows Server 2003, Windows XP, or Unknown.

%ProgramFilesDir%

The Windows Program Files directory.

%ProgramsDir%

The current user's Programs directory.

%RecentDocumentsDir%

The current user's Recent Documents directory.

%ResultCode%

The client's exit code.

%ResultText%

The client's exit code text description.

%ReversedComputerSid%

The SID of the computer in reversed byte order hexadecimal format.

%ReversedUserSid%

The SID of the current user in reversed byte order hexadecimal format.

%SendToDir%

The current user's Send to directory.

%StartMenuDir%

The current user's Start Menu directory.

%StartUpDir%

The current user's Startup directory.

%SystemDir%

The Windows system directory.

%SystemDrive%

The name of the drive from which the operating system is running.

%TempDir%

The current user's Temp directory as determined by Windows API.

%TimeStamp%

The time stamp of the configurations being implemented.

%TraceFile%

The path/name of the trace file.

%WindowsDir%

The Windows directory.