From a scripting view, can you check if a driver is unsigned - or more accurately check if the publisher cannot be verified - before you attempt to install?
Problem similar to this: How to get rid of "windows can't verify the publisher of this driver software" window?
I don't WANT to install the driver if the "Windows can't verify the publisher of this driver software" message appears; I simply want to check.
I am happy with any scripted or coded solution.