An application sends the WM_CPL_LAUNCH message to Control Panel to request that a Control Panel application be started.
wParam
Specifies the handle of the window sending the message. The WM_CPL_LAUNCHED message is sent to this window.
lParam
Specifies a far pointer to a string containing the name of the application to open.
The return value is nonzero if the application was launched. Otherwise, it is zero.
The string referenced by the lParam parameter must be contained in a global memory object allocated with the GMEM_NOT_BANKED flag.