Good Old Games Interview

Rock, Paper, Shotgun interviewed Tom Ohle about the Good Old Games DD service, and clarifies the confusion surrounding the game's source codes.
To what extent will games be re-coded to work with XP and Vista? Or will you just not carry a game if it requires a lot of work on that front? I can't help but think of Terror From The Deep on Steam, where the official line is that the time and cost and making it play nice with Vista was deemed not worth it..

AO: We don't have access to the games' source code, so we can't really re-code them. We work hard to make sure all the games run on Windows XP and Vista that's both 32-bit and 64-bit systems and we try to optimize them at the installation stage so that the game install works for each user configuration. If we happen on a game that doesn't work, we'll see what we can do; I hope that we never have to make that decision. All of the games we have right now work on our test systems.
There are work-arounds for XP and Vista for many of these games, so I s'pose that'll work out fine.