I am currently using Zmud, however Zuggsoft the maker of this, has a beta
released of Cmud. I will probably continue to use Zmud until Cmud is
out in a public release, then buy it. They can both be purchased from
http://www.zuggsoft.com
All of the maps I make are made in Zmud, so if you want to use them, you
will likely need to get Zmud. However, the actual map file is a .mdb
(MS Access will open it) and if you are crafty you could probably pull it in
to any other program you'd like.
other ones out there are Wintin,
Gmud,
Tintin++,
Portal
There is also Kmuddy and wine
Here is my screen shot of my registry for
Cmud data file