Grace to mostly Adam Ruppe's help, I got rdmd.exe to work on Windows for
some tests.
Essentially rdmd is a build-run program. All you have to do is pass it
the main file of your program, and it will take care of finding that
program's dependencies transitively, compiling them as well, and then
linking everything together. It's a very, very useful tool for projects
small and large.
I'd appreciate if other Windows users could try it. The executable is here:
http://erdani.dreamhosters.com/rdmd.exe
and the documentation is here:
http://www.digitalmars.com/d/2.0/rdmd.html
(Ignore the bugs section.)
Andrei