From the homepage:
DFM is a file manager for Linux and other UNIX like Operating Systems. DFM is
the abrvabation for Desktop File Manager. "Desktop" stands for the capability to
place icons on the root window. The idea to write DFM came from OS/2. For a long
time I had worked with OS/2. Using Linux I miss a desktop that provides easy
launching programs, managing files and their association. I think only a program
like the WPS can provide this.
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basically it is intended as a substitute to nautilus or gmc for drawing the
desktop but this one is very lightweigth. It's similar in concept to desklaunch
from the oroborus project but this one's more (feature) complete