This key has been used successfully with:

If that one doesn't work for you, try this:

8090-3192571

This key has been used successfully with:

Please send me an E-mail ([email protected] .name, take out the space) if you find other CD's that it works with. And thanks to the people who have helped keep me informed of what CD's require what key.The format for the nnnn-nnnnnnn. The first four digits seem to make a difference, but even versus odd totals are rumored to indicate an OEM versus upgrade CD (this hasn't been worked out). The last seven digits still must add up to a multiple of seven, but certain combinations like all ones and anything ending with a zero are disallowed. 4157-7777777 seems to work and is easier to type.

Windows 98 If your computer came with Windows 98 (i.e. you did not upgrade your computer to Windows 98), you may need to use an OEM number which you find via this link.

With Windows 98, MS seems to have gone crazy with the length of the CD Key or Product Key. There see to only be about three common families of CD keys, OEM, full retail, and upgrade retail. The main thing seems to be just using a CD key from the same family. Two less common families are corporate (which can sometimes bypass the mandatory registration process) and academic.

Windows 98 Second Edition keys are broken out in a separate section below.
Some Windows 98 CD Keys you can try are:
Windows 98 Second Edition Upgrade CD Key that should bypass the requirement to have Win95 installed:
Windows 98 Second Edition (SE) CD Keys you can try are:
If any of these keys work for you, could you send me the key which worked for you (first five characters is fine, I know the rest), the language of your version (English, Spanish, etc.) and anything else you know about its origin. I would like to be able to advise people which key to try as it is such a pain to type in these absurdly long keys. Send them to me at [email protected] .name (take out the space). If you have to use yet another Windows 98 CD Key, you could also send me the key along with what you know about this version and I will post it here in case the CD case gets separated from the CD and you can use this page as an archive of the key.
A most kind person sent me a load of other Windows OS keys. I will present them all in a separate page for you to look through if none of the above worked.
As a last resort, one person called Microsoft at 1-800-652-2342 when no keys worked with his version of Windows 98. They then promptly looked up a working key for his computer and sent a CD key to him directly via E-Mail (with no hassles).

99 CD's have gone back to the shorter CD Key, but they have different formats from the older keys. Try these:

425-1958694

This key is from MS Money 99. Both this key and the following have been used with Visual Studio 6 Professional Edition. The above key has been used with Visual Basic 6 Fundamentals.

813-1283563

This key is from MS Works 99.
A Serial Number for Visual Basic 6.0 Professional Edition is:

82891-81458-26914-54736 This serial number is also supposed to work with Visual C++, FoxPro, J++, ... as the Product ID for the 6.0 Professional Edition.

A CD Key for Publisher 98:

21897-00233844-96848

A CD Key for Office 2000 and Office 10 beta is:

MP4F9-W6C8V-HTCCT-T7M7R-Y7K3Ywith product ID of:

82503-711-0000007-67584 Rumor has it that the 711-0000007 is the only part that matters and it must meet the old nnn-nnnnnn requirements. Also, if the CD Key does not work for you, it has been reported that you can edit the product ID in the registry to match the one shown here and then the CD Key will be accepted (I haven't tried this as I don't have Office 2000).

CDs Key for Office 2000 are:
Previously this list had included GC6J3-GTQ62-FP876-94FBR-D3DX8 but Office 2000 has invalidated all installations using this key whenever SR-1 or SR-1A is installed. There is an article talking about this at http://www.theregister.co.uk/content/4/18683.html. Hope you don't get hit with this 'invalidated registration'.
CD Keys for Office 2000 Professional are:
CD Keys that worked for Office 2000 Premium are:
A CD Key that worked for Works Suite 2000 is:
CD Keys that worked for Office 2000 Small Business are:
CD Keys for Office 10 for Mac are:
With Office 2000 SR1 Microsoft has added a wrinkle of limiting you to 48 uses after you enter the CD key until you register. Once you register you get back another CD Code that you have to enter with the CD Key (how many numbers do you have to type in correctly to be qualified to use Office 2000). Further, this CD Code changes with each installation (can't be reused over and over again on multiple PC's). Any ideas on how to simplify this installation process would be appreciated.
Also, if you install the service pack for Office 2000, it will try to register with Microsoft and the program will stop working if you don't have an unused CD Key. XPKey.exe (above) might be able to give you a key that works or, if you are running under Windows XP, you might be able to back out the service pack by doing a System Restore (file accessories system tools system restore) to the point before the installation of the service pack.
Another approach is to call Microsoft on one of their 800 numbers any time you run into this glitch (and again assuming you are doing a legal reinstallation of your software). That way they have to pay (for the long distance charges) for your inconvenience. If it gets too expensive, they may give up on trying to force everyone to register every single installation (and reinstallation).
A CD Key for Works 4.5a OEM version is:

11111-11111-11111-11111-11111 This was just tried as a guess and worked. I would be interested if it worked for any other MS applications.

CD Keys for Word 2000 are:
CD Keys for Front Page 2000 upgrade and full version are:
CD Keys for Project 2000 Pro are:

Microsoft Word 2007 Product Key Free Code

A CD Key for Visio 2000 is:
CD Keys for Windows 2000 Professional are:
A way to alter your CD (new copy) so that it doesn't require a CD key at all is listed at http://www.thetechguide.com/articles/win2kserial.html.
There are also directions on how to alter a Windows 2000 evaluation copy to a regular full version at: href=http://gabbertown.com/wincodes_setupreg.html
There are also directions on how to alter a Windows XP CD from retail, volume, or OEM to one of the other types. It is at: http://www.petri.co.il/use_oem_version_to_upgrade_xp.htm. That site also has links to how to install Office and Exchange 2003 without any CD key.
CD Keys Windows 2000 Server are:
CD Keys that have worked for Windows 2000 Advanced Server are:
CD Keys that worked for Outlook 2000 are:
Some keys that came with Windows ME (Millenium) are:
Some CD Keys that worked for Windows Millenium Upgrade are:
Some CD Keys that worked with Office XP are:
CD Keys for Windows XP Professional are:
If you get stuck with the mandatory registration problem, you can always call Microsoft at 1-800-652-2342. If you have a reasonable story they will sometimes give you a new key to use. It takes time to get through, but at least it is at Microsoft's expense (as they are the ones who initiated the silly mandatory registration it is good that they bear some of the expense).
I found another program, KeyChang.exe, that should be able to change your Windows XP key to one generated by XPKey.exe and then activate your version without really contacting Microsoft. First run XPKey as described earlier and get a couple of keys. Then run 'KeyChang.exe' and folllow the directions. When asked for the CD Key, enter one of the keys you generated previously. Once you reboot the system all should be changed and you will have a unique CD key that should allow you to download the Windows XP SP1 update. Let me know how it works for you.
NOTE: The program 'KeyChang.exe' has a warning note which states you must have a Windows Installation CD available when changing the CD Key, however I have never had to use one so you should be OK even if you don't have the CD handy.
Microsoft is concerned about the use of corporate CD keys to avoid activation. There is a most informative web page by labmice.techtarget.com for what to do with Service Pack 1 of Windows XP which blocks out certain commonly used corporate CD keys. However, this page was pulled for a while at the request of Microsoft. In case you can't access it now, I made an excerpt of this page so you can see the sort of useful information that Microsoft finds objectionable.
If when upgrading, you get GetIUMS problems with msdart.dll, just download MDAC 2.8 from windows.com and install it. Then your problems should go away.
CD Keys for Windows XP Home Edition are:
A CD Key for Windows XP Tablet PC Edition is:
CD Keys for Microsoft Windows XP Professional Corporate:
A CD Key for Publisher 2000 is:
CD Keys for Publisher XP are:
A CD Key for Visio Enterprise Network Tools is:
CD Keys for Works Suite 2001 are:
CD Keys for Publisher 2002 are:

Microsoft Word 2002 Setup Product Key

A CD Key for Project Pro 2002 is:
A CD Key for Visual Pro 2002 is:
A CD Key for Visual Studio .NET is:
A CD Key for Visual FoxPro 7.0 is:
A CD Key for Visual FoxPro 8.0 is:
A CD Key for Office XP Pro 2002 is:
A CD Key for Project 2002 Pro is:
A CD Key for Works Suite 2002 is:
A CD Key for Word 2002 is:
CD Keys for Microsoft Office 2003 are:
A CD Key for Microsoft Frontpage 2003 is:
A CD Key for Works Suite 2003 is:
CD Keys for Publisher 2003 are:
CD Keys for Windows Advanced Server 2003 are:
These keys will probably stop working once Microsoft black lists them so they won't activate (will install). However, here is a link to a thread which talks about how to convert an evaluation copy of Advanced Server 2003 into a regular copy.
A CD Key for Office Mac 2004 (for Mac's) is:
A CD Key for Works Suite 2004 (including Word 2002) is:
A CD Key for Microsoft Office S & T Edition 2003 Trial with Microsoft Works 7.0 2004 Standard and Microsoft MSN Encarta Standard is:
CD Keys for Windows Longhorn 4015 beta is:
CD Keys for Microsoft Office 2003 Professional:
CD Keys for Microsoft Windows XP Professional X64 Edition Corporate Keys:
CD Keys for Microsoft Windows Server 2003 X64 Edition:
CD Keys for Microsoft Visual FoxPro 9.0:
CD Keys for Microsoft Operations Manager 2005:
CD Keys for Microsoft Office Communicator 2005:
CD Keys for Microsoft ISA Server 2004:

Microsoft Word 2002 Serial Key

CD Keys for Microsoft Business Network Professional Server v1.0:
CD Key for Microsoft Office Enterprise 2007
CD Key for Microsoft Office VisioProject Professional 2007
CD Key for Microsoft Office Home and Student 2007
As these codes have been published on the web, they still allow activation, but do not get past Genuine Advantage so you won't get non-security updates (no enhancements, just security fixes). What to do?
CD Key for Microsoft Expression Web

Product Key For Microsoft Word 2002

CD Key for Microsoft Windows Vista
CD Keys for Rise of Nations
CD Keys for Rise of Nations Thrones & Patriots Expansion
CD Key for Microsoft Visual Basic Express
CD Keys for Microsoft Media Center 2004 or 2005
CD Keys for Microsoft Windows 7 Starter (OEM-8992752) (OEM-8992707)
CD Keys for Microsoft Windows 7 Home Basic (OEM-8992752)
CD Keys for Microsoft Windows 7 Home Premium (OEM-8992687)
CD Keys for Microsoft Windows 7 Professional (OEM-8992671)
CD Keys for Microsoft Windows 7 Ultimate (OEM-8992662)
CD Keys for Microsoft Office Professional Plus 2010
Windows Media Player 11 now only functions if your system has passsed validation. There are numerous work arounds which you can find described on MyDigitalLife.info.
A most kind person sent me a load of other Windows OS keys. I will present them all in a separate page for you to look through if none of the above worked.
Hope your reinstallation goes well.
A special thanks to all the people who helped with contributions to this page. Also a big 'your welcome' to anyone who sent me a thank you note. These notes help inspire me to keep this page up to date (though I don't usually reply to most such notes, they are appreciated).

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This page was last updated on January 5, 2021.