[php] Could not execute menu item (internal error)[Exception] - When changing PHP version from 5.3.1 to 5.2.9

Maybe an old version of the service was not uninstalled from windows

  1. uninstall the old version running this command line

    sc delete wampapache

  2. Reinstall the service from wamp:

    Wamp Tray Icon -> Apache -> Service -> Install Service

It works for me, enjoy!