Additonal note on "interoperability" -

Setting a program installed on one computer so that you can run it from another computer is, according to the terms of most EULAs, the same thing as installing it on two computers.

Many programs do actaully give permission for you to install the program on two computers, with the expectation that you'll want what's on your desktop to also be on your laptop. In many cases you can "stretch the interpretation" to have the same program on more than one desktop provided that it's only used by one person at a time in order to comply strictly with the EULA.

If you have "multi-seat" permission, it's more efficient in most "home network" cases just to install twice than to "run remotely." You should, of course, read the fine print before doing either - or at least be prepared to pretend that you read it.

John