NOTE: If you are running Windows XP and have an invalid key code, you will not be able to install service pack 2.

KEY CHANGER
key-code/key-changer/
05/26/2002 v?.? xp_key_changer.zip
mike-devlin.com Windows XP Key Changer (display / change existing Windows / Office CD Key Codes) - portable - donationware

KEY FINDER
key-code/joshuas/
04/19/2007 v2.7-beta keyfinder-pe.cab
Joshuas Keyfinder-PE-BETA-VERSION Keyfinder-PE can decode (and change) the XP-key on Local or Remote systems. (portable)

KEY FINDER
key-code/jalapeno/
08/11/2007 v1.05 JSKeyfinder_v1.05.zip Win 2K, XP, Vista, 2K3, 2K8
Jalapeņo Keyfinder commercial - finds 80 of 170 total (portable)

KEY FINDER
key-code/key-finder/
08/06/2006 v1.51 kf151.zip
04/12/2008 v2.0.1 keyfinder.2.0.1.zip Win 95, 98, ME, 2K, XP, Vista, 2K3
Magical Jelly Bean Keyfinder - portable - freeware
12/22/2007 v2.0.4 beta keyfinder.2.0.beta.4.zip
??/??/???? v?.?? keyfinder-sp2.exe
Magical Jelly Bean Keyfinder - portable - freeware

KEY READER
key-code/cd-keyreader/
??/??/2007 v1.3 cd-keyreader.exe
skaro.net

KEY THIEF
key-code/key-thief/
09/06/2004 v?.? Keythief.zip
Dance Mammal KeyThief - portable - freeware

OFFICE KEY LITE can also be used to change Windows Key
key-code/office-key-lite/
02/21/2006 v1.0 Officekeylite.zip
WinKeyFinder find key of various MS Office Products - portable - freeware

PRODUCT KEY
key-code/product-key/
02/07/2008 v1.35 produkey.zip all versions of Windows and Office
NirSoft ProduKey - Recover lost product key (CD-Key) of Windows/MS-Office/SQL Server - portable - freeware

PRODUCT KEY EXPLORER
key-code/n-s-auditor/
06/03/2009 v2.1.9 productkeyexplorer_setup.exe Win 2K, XP, 2K3, Vista, Office, Adobe, ...
N S Autditor Product Key Explorer - commercial software - 15 day trial - crippleware

VIEW XP KEY
key-code/view-xp-key/
??/??/???? v?.? ViewKeyXP-sp1.exe Win XP
That Computer Guy. ViewKeyXP (may not work for service pack 2) - portable - freeware

WIN KEY FINDER
key-code/win-key-finder/
07/20/2006 v1.72 winkeyfinder_1.72 final.zip
08/01/2007 v1.73rc2 WinKeyFinder173_RC2.zip
WinKeyFinder

WINDOWS PRODUCT KEY VIEWER
key-code/win-product-key/
06/19/2007 v1.02 winproductkey.zip
RJL Software tools and joke / gag software - freeware

CD KEY SEIZER
key-code/cd-ky-szr/
??/??/???? v1.02 CDKYSZR.exe
Alex Nolan display Windows 2000,XP, Office 2007 beta, Office Professional 2003, Front Page 2003 (portable)

SYSTEM INFO - hardware and software
sysinfo/belarc-advisor/
??/??/???? v?.?? advisor.exe
Windows Vista, 2003, XP, 2000, NT 4, Me, 98, and 95
Belarc Advisor (PC info - hardware and software) - free

WIN GUGGLLE - recover Windows and Office Product Key
key-code/win-guggle/
03/11/2010 v2.1.1.2 winguggle2112.zip
WinGuggle - free

ROCK XP - recover Windows and Microsoft Product Key
key-code/rock-xp/
11/17/2009 v4.0 beta RockXP4.exe
RockXP - free
RockXP - free

PRODUCT KEY INFORMER - recover Windows and Office Product Key
key-code/product-key-informer/
02/15/2009 v1.0.0 pki.zip
Product Key Informer - free

gePRODUCT KEY FINDER - recover Windows and Microsoft Product Key
key-code/ge-product-key/
01/18/2007 v1.0 geProductKey.zip
Product Key Informer - free

KEY FINDER THING - recover Windows and Microsoft Product Key
key-code/key-finder-thing/
??/??/???? v3.1.5 keyfinderthing3.zip needs .NET framework
Key Finder Thing - free

MS KEY VIEWER PLUS - recover Windows, Microsoft and other Product Keys
key-code/ms-key-viewer/
??/??/???? v2.2.0 MSKeyViewerPlus-v2.2.0.zip
Todd and Keelee

LICENSE CRAWLER - recover Windows and Microsoft Product Key (local or remote machines)
key-code/license-crawler/
11/24/2009 v0.0.42 licensecrawler.zip
LicenseCrawler - free

BELARC ADVISOR - recover Windows and Microsoft Product Key
key-code/belarc/
??/??/???? v8.4 advisorinstaller.exe
Belarc Advisor - detailed inventory, as well as keycodes - free

CPP PRODUCT KEY FINDER - recover Windows and Microsoft Product Key (local and remote)
command line option /remote "computer name" /csv
key-code/cpp-product-key/
11/??/2010 v2.2.3 cppProductKeyFinder.zip
Product Key Finder - free

WINDOWS PRODUCT KEY FINDER PRO - recover Windows and Microsoft Product Key
key-code/win-product-key-finder/
09/24/2013 v2.5.0.14 ProductKeyFinder.exe needs .NET framework 2.0 Windows Product Key Finder Pro - free

PRODUCT KEY FINDER - recover Windows and Microsoft Product Key
key-code/product-key-finder/
07/12/2009 v1.0 ProductKeyFinderV1.0.zip
Over The Top Solutions Product Key Finder - free

XP KEY FINDER - recover Windows Product Key
key-code/xp-key-finder/
12/17/2009 v2.0.0.0 XpKeyFinder.exe
XP CD-Key Finder - free
XP CD-Key Finder - free

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