this is exactly what my users have been asking for... Unfortunately, it isn't working for me. It installed without error (as local service), I was able to register mailboxes without incident. However, when I invite the resource, I get an error in the event log. It is an Item Processing Excepetion. The exception info is as follows
System.Runtime.InteropServices.COMException (0x80040E19): Object or data matching the name, range, or selection criteria was not found within the scope of this operation.
at Private.Interop.Cdoex.IDataSource.Open(String SourceURL, Object ActiveConnection, ConnectModeEnum Mode, RecordCreateOptionsEnum CreateOptions, RecordOpenOptionsEnum Options, String UserName, String Password)
at Microsoft.Exchange.Agents.AutoAccept.EventSink.BindToCalMsg(String msgURL, String calendarLocation, IAppointment& inStoreAppt, String& calMethod)
at Microsoft.Exchange.Agents.AutoAccept.EventSink.ProcessOnSaveEvent(String itemUrl)
at Microsoft.Exchange.Agents.AutoAccept.EventSink.OnSave(IExStoreEventInfo pEventInfo, String bstrURLItem, Int32 lFlags)