I got a question during a chat about where the "ver" exe was located :)
C:\>ver
Microsoft Windows XP [Version 5.1.2600]
C:\>ver.bogus
C:\>for %e in (%PATHEXT%) do ver%e
C:\>ver.COM
C:\>ver.EXE
C:\>ver.BAT
C:\>ver.CMD
C:\>ver.VBS
C:\>ver.VBE
C:\>ver.JS
C:\>ver.JSE
C:\>ver.WSF
C:\>ver.WSH
C:\>