Logging lock/unlock/logoff/logon events using Windows Service NOT working

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I have created a windows service as follows:

C#

public partial class UserMonitorService : ServiceBase
    {

        public UserMonitorService()
        {
             InitializeComponent();
        }

        void SystemEvents_SessionSwitch(object sender, SessionSwitchEventArgs e)
        {
            switch (e.Reason)
            {
                case SessionSwitchReason.SessionLock:
                    LogEntry(string.Format("Locked at {0}", DateTime.Now));
                    break;
                case SessionSwitchReason.SessionLogoff:
                    LogEntry(string.Format("Logged Off at {0}", DateTime.Now));
                    break;
                case SessionSwitchReason.SessionLogon:
                    LogEntry(string.Format("Logged On at {0}", DateTime.Now));
                    break;
                case SessionSwitchReason.SessionUnlock:
                    LogEntry(string.Format("Unlocked at {0}", DateTime.Now));
                    break;
                default:
                    break;
            }
        }

        protected override void OnStart(string[] args)
        {
            LogEntry(string.Format("Service Started at {0}", DateTime.Now));
            SystemEvents.SessionSwitch += new SessionSwitchEventHandler(SystemEvents_SessionSwitch);
        }

        protected override void OnStop()
        {
            LogEntry(string.Format("Service Stopped at {0}", DateTime.Now));
        }

        void LogEntry(string message)
        {
            StreamWriter sw = new StreamWriter("D:/ServiceLog.txt",true);
            sw.WriteLine(message);
            sw.Close();
        }

    }

After installing, it logs Service start and stop messages perfectly, but does not log any of the session related events (so I know that problem is NOT with the logging part here).
Also, when I create a Console Application using the same code and execute it, it logs session lock/unlock events too (so I know that the SessionSwitch handler is also correct).

So what is the mistake here? Am I missing some windows service configuration change that needs to be done here? Thanks in advance.

Posted 19-Apr-12 19:04pm

Member 8854976

Updated 31-Mar-16 1:21am

Sandeep Mewara

v2

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Thoughtweaver · Accepted Answer · 2012-04-19T23:27:00

Hi!

When you initialize the service, you have to set the "CanHandleSessionChangeEvent" property to true. It is set to false by default. You also need to enable other service abilities explicitly:

EDIT: Where the service component is initialized:

C#

private void InitializeComponent()
{
    this.CanHandleSessionChangeEvent = true;
    this.ServiceName = "MyUserMonitoringServiceName"; // Or whatever your service is called
}

Some other things you can enable here:

CSS

this.AutoLog = true;
this.CanHandlePowerEvent = true;
this.CanPauseAndContinue = true;
this.CanShutdown = true;
this.CanStop = true;

EDIT 2:

Instead of the way you process your change event...

CSS

void SystemEvents_SessionSwitch(object sender, SessionSwitchEventArgs e)

once you have enabled the ability as above, create your event handler like this:

CSS

protected override void OnSessionChange(SessionChangeDescription changeDescription)
{
    switch(changeDescription.Reason)
    {
        case SessionChangeReason.SessionLock:
            LogEntry(string.Format("Locked at {0}", DateTime.Now));
            break;
        case SessionChangeReason.SessionLogoff:
            LogEntry(string.Format("Logged Off at {0}", DateTime.Now));
            break;
        case SessionChangeReason.SessionLogon:
            LogEntry(string.Format("Logged On at {0}", DateTime.Now));
            break;
        case SessionChangeReason.SessionUnlock:
            LogEntry(string.Format("Unlocked at {0}", DateTime.Now));
            break;
        default:
            break;

    }
}

Hope that helps!

alok.mailbox · Accepted Answer · 2012-04-23T03:53:00

Solution 2

Follow the link you may find your solution . .

http://social.msdn.microsoft.com/Forums/en-US/windowscompatibility/thread/4c685832-d4aa-4028-9969-60b658115736[^]

Posted 23-Apr-12 3:53am

alok.mailbox

Comments

Member 8854976 24-Apr-12 0:01am

Thanks.

Anderson V. B. Costa 15-Aug-13 13:23pm

Doesn't work with Terminal Service