Blender File Renderer 2
The second GUI app made for Blender. This one allows you to render out a number of files and also render specific frames or a run of frames. This was created under Windows XP so may not work as intended anymore.
Similar Posts
MiniSynth 2
The second app in the series, but this time you can record what you play.
Blender File Renderer 1.2
This is the first of two GUIs for rendering out Blender files. Designed for Windows XP
Mini Synth
Minisynth is a simple app you can switch between tree sample sets.