for(;;)<-------------------------------------Start dragging loop
{
   if (!co_IntGetPeekMessage(&msg.....<------Calling the message pump  
     
 (ommitting dragging WM_MOUSEMOVE messages)

(win32ss/user/ntuser/mouse.c:253) TRACE: Left Button Up <--------- Yes, we've got a WM_LBUTTONUP!!
(win32ss/user/ntuser/msgqueue.c:632) TRACE: Captured    <--------- We're in capture mode
(win32ss/user/ntuser/msgqueue.c:634) TRACE: Got WM_LBUTTONUP hwnd = 0004014E
(win32ss/user/ntuser/msgqueue.c:721) TRACE: Posting mouse message WM_LBUTTONUP hwnd = 0004014E
(win32ss/user/ntuser/msgqueue.c:1378) TRACE: Inserting WM_LBUTTONUP <-----Put in the message queue.
(win32ss/user/ntuser/msgqueue.c:2000) TRACE: PeekMessage WM_LBUTTONUP  hwnd = 0004014E remove = 1
(win32ss/user/ntuser/msgqueue.c:1720) TRACE: RemoveMessages == 1 
(win32ss/user/ntuser/msgqueue.c:1722) TRACE: In capture Mode <---- Still in capture
(win32ss/user/ntuser/msgqueue.c:2036) TRACE: Returning WM_LBUTTONUP  hwnd = 0004014E remove = 1<--Get it
(win32ss/user/ntuser/nonclient.c:396) TRACE: Got a WM_LBUTTONUP to exit, breaking loop
}<---- End loop
(win32ss/user/ntuser/nonclient.c:624) TRACE: Exit on WM_LBUTTONUP
(win32ss/user/ntuser/nonclient.c:625) TRACE: Exit loop  <----------------Out of Window dragging loop
(win32ss/user/ntuser/nonclient.c:391) TRACE: PeekMessage <---------------But continues to run
(win32ss/user/ntuser/nonclient.c:398) TRACE: message =160 
(win32ss/user/ntuser/nonclient.c:391) TRACE: PeekMessage <---------- How is this happening?
(win32ss/user/ntuser/nonclient.c:391) TRACE: PeekMessage <---------- How is this happening?
(win32ss/user/ntuser/nonclient.c:398) TRACE: message =160 
(win32ss/user/ntuser/nonclient.c:391) TRACE: PeekMessage <---------- How is this happening?
(win32ss/user/ntuser/nonclient.c:398) TRACE: message =160 
(win32ss/user/ntuser/nonclient.c:391) TRACE: PeekMessage <---------- How is this happening?
(win32ss/user/ntuser/nonclient.c:398) TRACE: message =160 
(win32ss/user/ntuser/nonclient.c:391) TRACE: PeekMessage <---------- How is this happening?
(win32ss/user/ntuser/nonclient.c:398) TRACE: message =160