# Macro Reference - System Info

Below is a list of System information macros.

The full list of macros can be found here.

Macro | Description
@OSLang | Returns code denoting OS Language. See Appendix for possible values.
@OSType | Returns "WIN32_NT" for NT/2000/XP/2003 and returns "WIN32_WINDOWS" for 95/98/Me
@OSVersion | Returns one of the following: "WIN_2003", "WIN_XP", "WIN_2000", "WIN_NT4", "WIN_ME", "WIN_98", "WIN_95" and "WIN_6.0", "WIN_6.1" that will change with the official release
@OSBuild | Returns the OS build number. For example, Windows 2003 Server returns 3790
@OSServicePack | Service pack info in the form of "Service Pack 3" or, for Windows 95, it may return "B"
@ProcessorArch | Returns one of the following: "X86", "IA64", "X64"
@ComputerName | Computer's network name.
@UserName | ID of the currently logged on user.
@IPAddress1 | IP address of first network adapter. Tends to return 127.0.0.1 on some computers.
@IPAddress2 | IP address of second network adapter. Returns 0.0.0.0 if not applicable.
@IPAddress3 | IP address of third network adapter. Returns 0.0.0.0 if not applicable.
@IPAddress4 | IP address of fourth network adapter. Returns 0.0.0.0 if not applicable.
@DesktopHeight | Height of the desktop screen in pixels. (vertical resolution)
@DesktopWidth | Width of the desktop screen in pixels. (horizontal resolution)
@DesktopDepth | Depth of the desktop screen in bits per pixel.
@DesktopRefresh | Refresh rate of the desktop screen in hertz.