I have a need to simulate the striking of the enter key on the NumPad. I've
tried using SendMessage with the WM_KEYDOWN and KEYUP messages with the
VK_SEPARATOR parameter to no avail. I have tried the keybd_event API also
to no avail.

Is there a parameter I should be using other than VK_SEPARATOR? Or is there
another API I should look at? Is it hopeless?