Patch 1.1 is the latest patch available for the game.
Improves stability on systems with at least 3GB RAM by allowing the application to use more than 2GB RAM.
FullScreen = 1
FullScreen = 0
The game executable has a hard coded memory limit of 1 GB, with large maps this can causes poor performance and crashes. As most systems have significantly more RAM in them, it is possible to expand that limit to utilize all available memory.
Download this executable and replace the RailRoads.exe file in the installation folder.