VER - Dos Command :

It displays the Windows XP Version.
Command can be run using Microsoft Windows XP Command Prompt (cmd.exe)
To view 'ver' command with its all possible parameters you can use following command. Its like help information to regarding that command.

ver/?

Syntax :
 VER

Use :

ver
Microsoft Windows XP [Version 5.1.2600]

Output :

Microsoft Windows XP [Version 5.1.2600]
(C) Copyright 1985-2001 Microsoft Corp.

D:\DINESH > ver
Microsoft Windows XP [Version 5.1.2600]

D:\DINESH > _