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XPKeyChanger - View & change the WinXP key, a utility that allows you to view and change the Windows XP product key.

sonic
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Just wanted to know how the windows key is stored in Xp and safe method for changing product key. So here is something i worked upon. Please test it and suggest any scope for improvement or bugs.

Check the whole thread to find any other updates :)

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Swagler
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Really nice sonic, thanks

I'll study code, but it appears to work great.
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akyprian
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sonic,

The XPKeyChanger works perfectly here. Very nice job, congrats.

Keep up the great work
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sonic
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Thanx for testing.

DisableEdits function was buggy. Updated the original.
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samael
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Howdy sonic,

The application works fine here (well, at least the part that decodes and displays the key - haven't actually changed it...).



1) Regarding Windows XP activation code verification algorithm:

This comment is not to report a bug, or a request for a feature - It just adds to the pile of information for anyone interested on the subject...

QUOTE
CheckValidity proc uses esi ebx hWnd:HWND
;DOES NOT check whether the key is valid.That is checked by the script

Unless i'm wrong, (and i usually am :P), the script merely reports failure of Windows to accept the provided key. One way, or another, it does the job though...

This document, more-or-less describes how the XP key can be validated (among others)...

MSKey Readme

... and this document (including references) helps someone understand what's discussed in the previous document: :P

Elliptic Curve Cryptography, Wikipedia



2) Regarding the way the scripts get to be executed & deleted upon completion:

CODE
invoke Sleep,500


There must be a more elegant way to execute vb scripts & wait for them to finish.
See if some of the code in this thread can be adjusted to your needs...

http://www.winasm.net/forum/index.php?showtopic=2096

As always, good job - thanks for releasing the application with source!
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