WAMP icon has disappeared from Windows' system tray

L.H. writes: "In Windows Vista, the WAMP icon disappears from the system tray after x time (not sure about the duration protocols). To make the WAMP icon re-appear (so that you can access localhost, phpmyadmin, php.ini, etc.), you have to activate the "start WAMP server" icon (from start menu, desktop or wherever); then the system tray icon reappears. Pain in the chicken, but that's Vista."