The software neither provides for a different installation path nor a different folder in which to store the messages. Guess someone didn't pay attention to Windows programming guidelines To log on ...

After upgrading or updating OS X, you may find a new folder containing programs and program components from your system. Topher, an avid Mac user for the past 15 years, has been a contributing author ...

Most of us ignore the installation path while installing a program or app and complete the installation. Later, when it is needed, we just don’t remember the installation path or location of that ...

To do it the way you want, I think you'll have the best luck hooking up that hard drive as a secondary drive in a different machine, boot up the other machine and doing all of the moves that way.