It has been asked before in some thread, but would it be possible to have a download option allowing to download some games in an compressed archive, rather than in an executable? I'm especially talking about scummvm and dosbox based games, and maybe some other ones who don't put themselves in the registry.
And most of all, besides being possible, would that be desirable to someone else but me? I would just like the fact to be able to download some of my games on another PC, have an hour of playing (whithout the need to have admin privileges) and the get back to work :)

It could be useful for some (all) titles, I know it's getting requested a bit lately, depends on how much they rely on a reg entry though. Also, on where you work, with the monitoring and security, you may not even be able to get away with it.
In lack of a zip file: You can of course, install many of these games to a USB based stick or pocket HDD, especially as the larger sizes are coming down in cost.

Yeah, that and/or having the games adapted for U3 so I can run the games via thumb drive without any registry muckups on a family/friend's computer.

many of the games are compressed, like UT2k4 for example, that's a 2gb file as opposed to Steam or other digital distributions, which are 4gb. GOG watches out for us and does compress the installation executables.

Ooh... a portable launcher, that would be awesome! Nothing too complicated, just something like
RegCloud* systemSettings = system.getRegKey("gameKey");
if(systemSettings!=NULL){
if(system.prompt("Data from a previous installation has been found. Do you want to launch the game with the data present on this system?")){
(new process("game.exe")).start();
return;
}
}
system.importRegKeyFromFile("gameKeys.reg");
(new process("game.exe")).start();
if(system.prompt("Do you want to save the settings back to a file and restore the system's previous state?"))
system.getRegKey("gameKey").writeToFile("gameKeys.reg");

He doesn't want it for the compression Wec, he wants it for easy access to the game files themselves. With the DOSBox/ScummVM games, having just the raw game files in a zip makes it easier to move the game onto another platform. Right now, you have to first install the game on a PC, and then dig the specific files you need out of the installation directory yourself.
I too would like zip files (as an option, not a replacement) for the games that use DOSBox/ScummVM.

that's what I get for ignoring the second paragraph.