I'm standing to be corrected on this, but to my knowledge there is NOTHING RoboHelp can do to influence this. I'm not even sure your developers can influence it either. But if so, it would fall squarely in their lap.
As I understand it, within Windows, there are many rather "generic" type dialogs. Further, I understand the printing system is sort of a "subsystem" of its own.
The bottom line here is that I'd be shocked to discover that you will be able to change anything in that dialog.
Helpful and Handy Links
Whilst your users will see the Find Printer option, surely they should not be able to access your network from there unless your permissions are complete rubbish?
They should only be able to access those parts of your network your app allows them to access.
I am not saying it is impossible given all the publicly known hacks but are those guys amongst your customers?
See www.grainge.org for RoboHelp and Authoring tips
Thanks both for your replies.
Peter - you're quite right about permisisons but our software is healthcare-related and we hold patient data on our servers so we have to comply with particularly strict regulations about this sort of thing.
I'll pass on the info to the developers.