Be able to install onto external usb for ease of use with other computers you may have

Agreed! I do that to all my programs. I use a WD 1TB external HD. I setup a folder called: Apps or Programs shared. You can use any variation you wish to label your shared folder or whatever name you choose. Once I did that, then whatever laptop I'm using, I click on the "shared folder" in the Western Digital external, and select whatever program I need to use.

Works like a champ!
Win2013