I have used Logic 4 (www.hosenose.com
) for many years with perfect satisfaction. You will have to pay for it, but most things that have lasted are worth what you pay for them.
And congratulations with sticking with DOS. I have never understood why someone will go from a system that's up and running in 20 seconds, each time and every time for years on end; to a buggy system that has to be frequently reloaded, that often fails to come up and must be repeatedly rebooted and nearly as frequenly reinstalled in order to get it to work at all - just so they can spare themselves the pain of typing in a few simple commands.
73 Pete Allen AC5E