Latest questions about "registration data"

After using my paid for and registered Dr Beam, it is now asking me for my registration number. I don't know how it happened but I don't remember the number or where I might have stored it.

When I am trying to install, I can't find the .key and .reg files.

I have lost my Peachtree Premium Accounting 2009 Software CD, but I have its serial number and registration number. How can I find the software for downloading because I am in a big problem.