EXAMPLE
	This example will demonstrate how to call the handler from within an
	application to asyncronously start a web browser on a link.
 
	    BPTR scb = IDOS->Open("URL:http://www.domain.com",MODE_OLDFILE);
 
	    if( scb )  /* Check return value and Close() immediately. */
	    {
	        IDOS->Close(scb);
	        IDOS->PutStr("Client started successfully.\n");
	    }
	    else
	    {
	        IDOS->PutStr("Error: Unable to start client.\n");
	    }