Exception while ManagementEventWatcher(WMI) to notify events from remote machine

Question

I am trying to get notification from a remote machine \'s event viewer using WMI and C#. I am able to connect the system and also get event log by using ManagementObje

Answer 1

Try listening semi-synchronously with WaitForNextEvent():

    var managementScope = new ManagementScope(@"\\mysever\root\onguard"); 
    managementScope.Connect(); 

    var query = new EventQuery("select * from lnl_AccessEvent");
    var eventWatcher = new ManagementEventWatcher(managementScope, query);
    var wmiEvent = eventWatcher.WaitForNextEvent();
    Console.Out.WriteLine(wmiEvent.GetPropertyValue("Description"));

We've also found wbemtest.exe useful. Click the Notification Query... button to listen for events. You can try the various connection methods (synchronous, asynchronous or semi-synchorous). All connection methods work when connecting to your local machine but we were only able to get semi-synchronous to work remotely. Asynchronous (which you are using) is more complex (and less secure) because the server must make a connection back to the client.

Some good information here on security and configuration settings: http://www.packettrap.com/network/Knowledge-Base/PacketTrap-MSP/WMI-Troubleshooting.aspx#_Toc239699682