there aren’t (as far as I know) any seetings in twain to suppress error messages, and even if there were what makes you think vendors would follow that part of the spec when they don’t follow it in so many other areas?
for error suppression I rolled a couple of .net classes to deal with dialog managment, I’ve you’re looking for a link to the code lemme know.
Since this is happening in your app, I’d have to say yes there is a way to catch the error from your app, where in your would depend on where the errors happens. If you post a snip of the code where your code goes kaboom, it would help.