Windows XP sysprep images prompting for activation after the image is deployed

Hello world.  Here is my issue.  I have created a sysprep image from Dell OEM Windows XP sp3 and SYSPREP sp3.  I have successfully created sysprep images on Dell machines in the past with the older version of sysprep.  In the past, I created in .inf file and put in the key, created the image and then ghosted it to all our models without having to activate windows after.  Now, I am doing the same thing however after each deployment, windows is telling me I need to activate it by going to the Microsoft site.  Everything works fine on all the models receiving the image, however I was wondering if there is a way to get around having to manually click on the "go to activation" for each machine.  Our company has several hundred users and alleviating this step would be great if possible. (I am positive I never had to do this for the older version of sysprep but maybe I am missing something?)   Again for the .inf file, I am using the XP key that is attached to one of our desktops.  Thanks for your help
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☠ MASQ ☠Commented:
Using the CoA key with the Dell OEM image is the mistake
Use the code from here 

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Craig BowmanIT Services ManagerCommented:
Are you using a volume license product key?    Check out this link where it is put under section "UserData"  of your Sysprep.inf file.

Jason WatkinsIT Project LeaderCommented:
Generalize the image as a aprt of Sysprep, this will remove the product key and get it ready for the end user.

sysprep.exe /oobe
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