> Preparing the query first helps the stored proc refresh it's parameter

list,

> but why do I have to perform an implicit prepare for the stored proc where
> everywhere else I do not have to? The Prepared property is set to True.

What version of IBO are you on?
I recently fixed an issue to do with stored procedure params handling.

If you are current up to IBO 4.2Fn then I would like a sample application of
your problem.

Regards,
Jason Wharton
CPS - Mesa AZ
http://www.ibobjects.com