Bill Buckels has released several utilities (and source code) for DOS 3.3 users of the Aztec33 C65 compiler:
- RAT, a command line tool to analyze or export random access text files.
- RD, a random dump hex viewer and file analysis tool.
- DIR33, LS33 and CHTYPE which are list builders and a util for changing DOS 3.3 filetypes.
- SHELLME, SHELLMETOO are reformatted editions of the Aztec C DOS 3.3 documentation plus extras.