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Basically, I'm going to be checking in on one specific program on a few computers, importing new files into that program, and modifying those files a bit. I only need access to one program, but I also need access to the client's database for that program (so for instance, if I'm in iMovie then I need access to the main iMovie library). That access should be constant while the computer's on (like LogMeIn or TeamViewer) and not require the client's approval/presence to initiate a session.
For Macs, it seems like the most straightforward way would be to set up a limited account with heavy parental access restrictions, and just stick their database file on that account. They should be able to access/update it from their admin account. I'd prefer a way that doesn't require creating a new user account, though.
No clues at all what to do on a PC. Everything I've looked at so far seems to be Server 2008 & RemoteApp, which does not seem to me to apply in this situation.
1What Program are you trying to get remote access to on both it may help simplify the question and get you the answer you are looking for. – NetworkKingPin – 2016-04-13T05:14:58.450
Any photo management software - might be iPhoto, Aperture, Photos, Picasa, Lightroom, Mylio, or something else I haven't thought of yet. It will vary from person to person. – Marmeluke – 2016-04-13T12:24:11.740