DS3 not breaking

Well, the case with DS3.0 is that doing U MessageBoxA shows the right code (and this is without loading any symbols, only exports). But regardless, bpxs are still not global to all processes; they only apply to the process whose address context is active when you actually set the bpx.

Again, I personally don't consider this to be a problem, on the contrary, I prefer this over the way it used to be. But for those who want the bpxs to be global, I do not see a way to do this any more.

Originally posted by Lunar_Dust
As far at Bp on the HWND you can't be in idle process to use it. You have to "PROC", and then "ADDR" to some process with a window, and now you should be able to set such a breakpoint...

As a reminder, note that you can use ATTACH instead of ADDR if you want. "ATTACH <process name/id>" causes an automatic "ADDR <process name/id>" every time you Ctrl+D, very convenient.