>Any info yuo could provide would be appreciated. TIA

Here's the declaration, some values, and an example procedure:

DECLARE INTEGER SendMessage IN Win32API;
  INTEGER hwnd, INTEGER uMsg,;
  INTEGER wParam, INTEGER lParam
#DEFINE WM_CLOSE	    0x0010
#DEFINE WM_DESTROY	    0x0002
#define WM_QUIT		    0x0012
PROCEDURE KillWindows
* This assumes that the above declaration are in effect.
LPARAMETER pctitle

LOCAL lnhwnd
* Call Is_Run for a window handle
lnhwhnd = Is_Run32(pctitle)
DO WHILE NOT EMPTY(lnhwnd)
  * If this doesn't work try the other
  * values
  = SendMessage(lnhwnd, WM_CLOSE, 0, 0)
  lnhwnd = Is_Run(pctitle)
ENDDO

Naturally, I'd test this pretty thoroughly before implementation.

Please let me know how this turns out.