Patio,
what I was trying to install was W2K on a 39gig HD , as the old 29gig HD was full, and loaded with gazillions of programs/applications.
I am the owner of the Installation W2K CD and it is original, and originally loaded on the 29gig.
The 39gig was formatted on a different machine, but my machine did not like it. After reformatting and installing W2K it would run fine until a Cold Start. I repeated this several times, and noting the messages that came across. These were the same: Dll, Hkeys, exe and other complaints.
I finally reformatted the 29gig and installed W2K. No problems up to now.
I don't think it would make any difference XP or W2K. It is the HD.