Since I experienced similar problems with running the game that have not been answered yet, here is an alternative procedure for DOSBox users:
1) Unzip the archive into directory which you mount as the C: drive in dosbox (e.g.: C:\DOS\)
2) Run the DOSBox and type
Code:
mount C: C:\DOS\
C:
cd ring
install
3) Install the game into the different directory (e.g. RINGX, if you do otherwise the installation will rewrite the source files and you will end-up with failure). The installation will go over the 100%, but its ok.
4)you should be in the RINGX (or whatever you have chosen) directory, then just type
to start the game.
Note: works for dosbox 0.72