split the common control for the server in its own control script

CLIENT_DATA/setup3264.ins

@@ -68,6 +68,11 @@ else
 	comment "Show product picture"
 	ShowBitmap "%ScriptPath%\" + $ProductId$ + ".png" $NAME$
 
+	if FileExists("%ScriptPath%\control3264.ins")
+		comment "Include Control sub section"
+		Sub "%ScriptPath%\control3264.ins"
+	endif
+
 	comment "Stop TightVNC Server"
 	DosInAnIcon_stop_server