Purpose of a crack:
1. For installation SP on any serial number XP
2. For activation anyone XP (with SP or without him)
The operating procedure:
Be loaded in the SAFE MODE (F8 at loading a computer)
Also start winxp_crk.exe there all further instructions are written
PS
If you have XP already installed, and SP1 on him it is not put,
it is a cracked serial (before it you already started a crack),
It is necessary to remove CONTENTS of a key of the register:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\WPAEvents\OOBETimer
Then to start Activation Windows XP (msoobe.exe/A) to choose
In activation by phone and to fill in all fields 401111 and to press Next,
After that SP1 it will be put without problems.