I bought adware plus 2007 a while back and I when I put in the serial number I'm told it is invalid. I tried to go to Lavasoft.com and get some info but there wasn't much help for me. Can you help?

I think most of the licenses for the 2007 version might be expired - the 2007 section here says to update to AE. If you're sure it's still valid, log into Lavasoft Customer Support via the link in my signature.

I have Adaware AE plus but switch hardrives and do from time to time. it will not allow me to use my serial because of this. Please help

you need to do as visitor recommended to the original poster and log into the support center. Then send them the question and they'll send you a new code.

Casey