ASSUMPTIONS MADE: you run windows xp or vista
If you already have the same version of Office 2007 with the same key on a different computer heres what you can do:
1. Install Office 2007 with CD or trial version (just dont type anything in the activation key box and click continue)
2. run "regedit" on the computer WITH OFFICE WORKING! by typing regedit in the run command or search it on your system
in the registry locate the directory:
HKEY_LOCAL_MACHINE/SOFTWARE/Microsoft/Office/12.0
3. with the directory 12.0 HIGHLIGHTED click File --> Export and save as OFFICE.reg
4. copy this .reg file to a flash drive or by some other means to transfer the registry files to the other computer with Office unactivated.
5. On the computer with Office installed, but not activated simply locate the OFFICE.reg file and run it (double click).
6. WAH Lah!! you can now run ALL programs that came with OFFICE and they will pop up with a verification page or something of the like,
7. Click register ONINE, and your OFFICE version is now set to go on your computer again.
This is how I managed to keep Office working on all of my networked computers, as I lost my activation key long ago, and the activation key is encrypted in the registry files. I know there are a few more ways out there to do simular tasks, but this is by far the easiest, and for a user that is comfortable with windows registry. Hoped this helps either you or any other web-surfers in need of help with this topic.