What is it?

HydraDM.exe is associated with ATI technologies Hydravidion Desktop manager.

What does it do?

"Hydravision Multi-monitor Management Software enables you to tailor your desktop to the way you work, so you can manage increased amounts of information and improve your productivity."

More info:

Read more about ATI Technologies HydraVision @ [url=http://www.ati.com/products/Hydravision/]ati.com[/url]