I mentioned this in the randoms thread also - there's a website with a DOS game emulator you can play right in your browser. There's a huge game library including the original Oregon Trail, Tetris, etc. I'm feeling so nostalgic! Here's the link: DOS game emulator
spankswife, Yes it is! To the right of the game list is a box that says "search this collection". Just put in "where in the world is Carmen sandiego" and 5 results pop up.