> Tech support referred me to this site for help.
AFAIK if you qualify for tech support, and you reached tech support, they should not refer you to a volunteer site.
This is not an answer to your question, just some additional information: The following documentation page describes the mechanism whereby dbdata16.dll is created; it does not explain why the process might run away and use up all the disk space: The SQL Anywhere .NET Data Provider dbdata DLL
