Alerting the user from a driver is a bad, bad thing.
I believe it is not allowed by WHQL certified drivers.
(It's also non-trivial to do in a Windows kernel driver. You can't call MessageBox(), you can't process user input, you can't even get a context to draw on the screen. Basically you have to rely on a user-mode helper app that gets launched at boot time, which is one of the reasons you see so many device-tweaking utilities for graphics cards and sound cards).
I believe it is not allowed by WHQL certified drivers.
(It's also non-trivial to do in a Windows kernel driver. You can't call MessageBox(), you can't process user input, you can't even get a context to draw on the screen. Basically you have to rely on a user-mode helper app that gets launched at boot time, which is one of the reasons you see so many device-tweaking utilities for graphics cards and sound cards).