A DrumSynth Preset is a file with settings for DrumSynth, which began as a standalone program from Maxim Digital Audio and then was released as the DrumSynth Live plugin for FL Studio (FruityLoops).
The files are in ASCII text form, with a series of
Name=Value lines divided into sections beginning with lines with names in square brackets like
[General], and blank lines separating sections.
The usual beginning of a file (in version 2.0 of the format) is with these two lines:
[General] Version=DrumSynth v2.0