Using XPproSP1 install CD with pre-SP1 licenses

[cinderbloke]

I still have several unused (still shrinkwrapped) copies
of the original retail release of WinXPpro and want to
install them on some brand new computers.

I have one copy of a post-SP1 release of WinXPpro that
contains all of the SP1 updates.

Is there any way for me to use this post-SP1 CD to
install WinXPproSP1 and then use the appropriate pre-SP1
license keys so I can get "clean" installs (without
having to apply the SP1 or SP1a patches)?

 

[cinderbloke]

Thanks for your response, Chris.

I've already tried once and it rejected all of the pre-
SP1 keys.

It would only accept the key of the post-SP1 CD (which I
have already activated on another machine).

Since I have only one license of the post-SP1 install CD,
I can't test to see if it's CD-specific rejection, or
release specific rejection. I'm assuming it's release
specific.

I'm hoping someone knows of some other method to convince
the install that pre-SP1 licenses are still valid.