I saw this posted on OSNews and wanted to pass it along. This blog describes how Wayne Piekarski was able to get Microsoft Flight Simulator 4, released for MS-DOS over 30 years ago in 1989, running on his 3-screen immersive flight simulator rig. It's an amazing and detailed write-up that involves forking DOSBox and modifying it to do what he needed:
I'm a bit of a fan of emulators, so I used DOSBox on Linux to start up Microsoft Flight Simulator version 4 on a big monitor. It is amazing how low-res 640x350 is when displayed on a large 1920x1080 display, although you didn't notice it as much on a 14 inch CRT, which is smaller than many laptops these days. DOSBox supports emulating old analog PC joysticks, so I was able to configure FS4 to use my yoke and throttle. I always wanted to have one of those as a kid as well, and it worked great. While there wasn't much for graphics, it worked with a nice smooth frame rate, and it was pretty cool.
But then I started to think about how even better it would be to run FS4 on all three monitors, just like I'm doing with X-Plane now.
Read Wayne's full post: Modifying Microsoft Flight Simulator 4 to run on three immersive monitors
(Photo credit also goes to Wayne Piekarski)