I have no ZmZimletBase object in zimbraAdmin Zimlets, neither in Zimbra7 nor in Zimbra8, so I haven't the ZmZimletBase.PROXY variable available.

Is there another variable where to find that value?
Or have I to use Zimbra proxy in another way?
Currently I'm using AjxRpc.invoke prepending the url with ZmZimletBase.PROXY, but I'm in frontend Zimlets... may zimbraAdmin Zimlets require another way?

Thanks in advance for the support.
Hope in a reply.