Hi Bryan,
We used to use a utility called "Alcadmy" from a Cadama Design group that may have come with Cadkey. This only convert CADL files to DXF though. I am not sure if this is what you need or not. The CADL programs can also be opened as text files in notepad. If the language matches, they may be able to be re-compiled into another format from the text file.
Andy