@captaincranky: Re KB950722, this is probably not a VLK installation but I think you're pointing in the right direction -- Windows Product Activation (WPA) has been thrown off, IMO by entering the Product Key into the nLite slipstreaming process rather than manually entering it during installation. You think?
@Andy123: Pardon more questions, but:
-- On what platform did you create the slipstream; ie., XP, Vista, Seven? The latter two are known to be problematic.
-- During the 4 weeks since installing the slipstreamed version, have you ever activated Windows? You installed the "Genuine Advantage Notification" update?
-- Is your installation medium OEM, Retail, Upgrade? (Microsoft may have shot a "bullet" if it is OEM.)
ASIDE: Until you can actually get to the key-entering point, this may be moot but, I believe OEM's have a limited number of activations #3-5?# where Retail's are either greater or "unlimited".
-- You exactly followed KB914232 - Method 2 and successfully replaced all mentioned files, right?
If so and it were my machine, I'd backup my files, chicken out and try again from scratch --leaving out entering the Product Key during slipstreaming.