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which License Key is the correct one to use?

Last Modified: 2013-11-05
I've obtained a license from Microsoft and have accessed it from eopen .com.

There appears to be four different key codes, one for each of the following:
Windows Server 2003 R2, x32 ed.
Windows Server 2003
Windows Server 2003 R2 x64ed.
Windows Server 2003, x64ed.

I know that I'm not going to be using the 64 bit edition (I think). Which of the other two is the correct one to choose. i'm also not sure how the server knows that i have 35 seats. Do i need to inform my server?

Please explain.

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PberSolutions Architect

Chances are you want the "Windows Server 2003 R2 x64ed" key as any new OS media will be R2.

Depends on which install CD you are using. What does your CD say?
Top Expert 2007

Most likely you'll use the the Windows Server 2003 key first (initial install from disc one of your media). If you do have the R2 media....and decide to install it using disc two....then you'll be prompted for another key during the R2 install/upgrade....at this point you'd use the Windows Server 2003 R2, x32 ed. key.

(If you're installing the OS on a 64 bit processor machine then you'd use the bottom two in the same manner)


Microsoft Windows Server 2003 R2
Standard Edition
(Volume License Product Key Required)
Top Expert 2007

Is the server already running Windows Server 2003, or are you doing a fresh install?
Solutions Architect
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This is a fresh install
Top Expert 2007

Then my initial post should be the way to go.

You'll use disc 1 to install Windows Server 2003; using the Windows Server 2003 key when prompted. After Windows is installed...if you decide to upgrade to R2 using disc 2...then during the install you'll be prompted again for a product key, at which point you'd use the Windows Server 2003 R2 key.
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