Win7 Preventing Maximized Window from getting restored on dragging with Title bar.

I have a MFC dialog app. On windwos 7, if maximized and dragged with Title bar, gets restored. This is default fuctionality for AeroSnap. Can we avoid this ?

Why do you need to avoid that?
What are you really trying to accomplish.
This dragging to restore is standard behaviour in Windows 7, users expect it, and will get upset if it's not working with certain applications.