XP ukazna vrstica, ne prepozna ukaza?

A mi lahko nekdo razloži, kaj sem zaj****, da mi nobenega ukaza ne prepozna.

Takole mi napiše:

Microsoft Windows XP [Version 5.1.2600]
© Copyright 1985-2001 Microsoft Corp.

C:\Documents and Settings\Miha>ping www.google.com
'ping' is not recognized as an internal or external command,
operable program or batch file.

C:\Documents and Settings\Miha

Za vse take gnoje, kot sem jaz, ki ne vprašajo najprej strička Googla.

Tkole je to:

For Windows XP:

Right click "My Computer" and click "Properties". Click the "Advanced" tab up top followed by the "Environment Variables" button at the bottom. In the 2nd list box, scroll down to the 5th or 6th entry "Path", select it and click "Edit". Add "%SystemRoot%\system32;%SystemRoot%;" (minus the quotes) to the beginning of the line. Okay the changes and try out your commands now.