ArcTool
This was my largest program for the Amiga. It was written in straight 68000 assembly language and was basically a graphical frontend to archivers that hid the user from all those cryptic commandline switches. It featured a simple scripting mechanism so that support could be added for newer achivers without the need for a new release.
Since it was written for Workbench 1.3 to ensure as many Amigas could run it, most of the GUI components had to be written from scratch.
See the Source code. Unfortunately I don't have the readme available.
Early prototype of version 2