I'm trying to runa microsoft office student version 2007 disc in my new laptop and for some reason it acts as if the disc isn't even inserted in the cd drive?
I've also tried running it in two other computers:

My girlfriends mac = the cd ran great (i did not install anything though)

My mom's pc = I get an error stating "The SETUP.EXE file is linked to missing export KERNEL32.DLL:VerifyVersionInfoW."
This error does not come up on my computer however (I am running vista while her pc still runs Windows ME)

I have used this disc to install office twice before and I know the product key only allows you 3 installs so I'm wondering if that somehow has something to do with it? Does the disk wipe out a critical component needed to install again and again once it has reached it's limit? If so am I screwed or do I just need to find someone with the Microsoft disc?

Also, I already have a microsoft student version pre-installed on my hp stating it's a 60-day free trial version. I have my microsoft office product key but when I enter it into the version installed on my computer it doesn't recognize it? Whyis the product key only valid for the cd version but not the version pre-installed on my pc?

Thanks in advance