Hi Paul
thanks for your reply.

I have found that the sub-codes changed from what I was getting
yesterday, so I don't think they are really the sub-codes for the
given isc error. Bummer, would have been good.
Perhaps they're session dependant, or something...
But I'm pretty sure they do not represent the actual error (path not
found, file not found, etc)

I have the API guide, and will read through it to understand more.

-Ryan