Game Launcher that Reduces Resolution

[pointertovoid]

Hello you all!

I saw a few years ago a small free application that reduces the screen resolution and launches (typically) some old game that would display too small on a modern screen. Later, it restores the original resolution.

Maybe Xp has it built-in, but I have W2k and stick to it.

When I saw that application, I didn't download it, and now I miss it and don't find it again.

Do you have clues? Name, address...? Thank you!