computer ID

See if the following utility helps
ID-Blaster Plus - change Windows ID numbers

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ID-Blaster Plus allows you to edit Windows Product ID or UserID numbers. Since these numbers are unique for each PC, they could potentially be used to track computer activity or associate a computer with a particular person (even though their actual intent is quiet different). ID-Blaster Plus works by changing these ID numbers frequently, destroying potential tracking tactics using these numbers. ID-Blaster can run from the system tray, using up very little resources, and constantly protect you in the background. Be advised that these numbers may be need for system upgrades or re-installations. Use with caution!
http://security.webattack.com/get/idblaster.shtml

License: Freeware
Price: Free
Windows: 98/ME/2000/XP
File size: 544 kb

Go to www.Majorgeeks.com,click on System Info. pick Aida 32 Enterprise System Information,download and install. This will give you the computer ID number,and its freeware.

Hope this helps.