Pieter,

Ah, at least one step ahead.

About the status 170. Does the error show the URI it is trying to use? Is there a difference between yours and the others. (maybe missing @ sign or something).

It might also be your Windows login name is used as the default user. Is it possible your Windows login name is know at the server and the others not?

I am not in favor of having multiple configuration files. (Dfbtrdrv.int). There is always the risk at some point the wrong version is found. And you must keep remembering you have to make changes twice.

I would put it in the data folder. That is, where your table.int files are.