Well I figured i'd post a nice little blog in progress here.
Currently I just tried to slipstream XP SP3 RTM 5512 into an XP2 VLK image and I've manage
to complete it and after testing on VMWare desktop, it yielded the wrong product key, which
I know works perfect.
So I looked up the issue and found out there is a known issue where you cannot slipstream XP3
in vista. Go figure...
So I freshly tried it again on my laptop and with the same result. Invalid key. So Apparenly I'm
guessing that you cannot slipstream XP SP3 while running XP SP3 as well.
So now I've resorted to running XP SP2 in a vmware desktop and im trying this one last time.
I'll post the outcome.