Dual Boot Activation

I am dual booting Windows Vista and Windows 7. When I activate one the other becomes un-activated. Is there other activators that will work. Any help would be appreciated. Thanks.
Answer #1
I have windows vista retail installed and windows 7 downloaded and installed with 7loader.
What is your situation? If same, just search for 7loader and instal it with that (windows seven)
Very weird though how the other one becomes unactivated. You cannot use 1 code on two systems, tho you can reuse it for the same windows version on the same pc (I installed vista again because of virusses, even tho with vista downloaded)
Answer #2
its in the way the oem emulators\bootloaders deal with the mbr. if you want to dual boot try getting away from vista (vista does not offer anything that win7 does not) and go win xp pro and win 7
Naz