Hey tried 2 games, with the DOS program thing.

when i try the run the Setup file in Simtower, it says i need windows program to run it. but in windows(XP) it dosn't work.

in s2g i get into the game, but as soon as i start a map, the game goes down, and DOS also shuts down.

You should post more about your computer / OS.

You don't need to install games downloaded from Abandonia. Most of the games should be playable trough DOSBox/VDMSound. (Dos titles)

SimTower is a Windows game. You definitly won't be able to run it under DOSBox.