DragnMaw, Dragon as far as I know is a mapping tool. It's a rather old tool but I had it working last about a year ago.
It allows you to draw a bmp image of a map using a set of specific colors that denote terrain types and altitudes.
GendR, what errors are you getting from it? Which version are you using? Which bmp format are you trying to convert to or from?
I'll try to help out if you're still having issues best I can.
(If I'm wrong about what you mean by Dragon and it isn't the mapping tool, just disregard this foolish person's response.)