All hotkeys/scripts set in autohotkey will not fire when the dxnothing window is active, nor will they continue if started in another window.

For eg.


*^u::
KeyWait, NumPad0, D
Cclick(1, 1, 660, 520, 1)
KeyWait, NumPad0, D
Cclick(1, 1, 660, 600, 1)
KeyWait, NumPad0, D
Cclick(1, 1, 660, 680, 1)
KeyWait, NumPad0, D
Cclick(1, 1, 660, 760, 1)
KeyWait, NumPad0, D
Cclick(1, 1, 730, 520, 1)
KeyWait, NumPad0, D
Cclick(1, 1, 730, 600, 1)
KeyWait, NumPad0, D
Cclick(1, 1, 730, 680, 1)
return

If ran in word. Hitting Ctrl+Shift u runs the script. Hitting Numpad 0 progresses through each step.
In Dxnothing well.. nothing.
If Ctrl+Shift u is hit in word, then switch to dxnothing, Numpad 0 will not progress but will when switched back.

Any idea what's going on here or how to fix?