ActiveX DLL / EXE Register

Hi there. In VB, if I use an activeX DLL/ EXE, I click on project--> references to add a reference to the activeX. Is there a way of adding this reference by code?

Secondly, I need to determine (in code) the field data types in an access database sothat I can automate a process of transferring data from a mdb to a mysql database. I know how to get the field types, but I don't know how to determine if the field is an autoincrement field or not.

Thanks,

John