How to Know When A Person Logs on to Windows?

Problem:

Imagine you have a Windows Service application which runs automatically when Computer starts.

You want to find out when a Person Logs on and Logs off in Windows so that you take further action against it.

Solutions:

1. Winlogon Notification Packages

If your Client PCs are in Windows XP and Windows 2003, you can use this option. It doesn't work for Windows Vista and later.

http://msdn.microsoft.com/en-us/library/aa374783(VS.85).aspx

http://www.codeproject.com/KB/system/winlogon_notification_package.aspx

http://technet.microsoft.com/en-us/library/cc721961(WS.10).aspx

2. Windows Management Instrument

Windows Management Instrumentation (WMI) is the infrastructure for management data and operations on Windows-based operating systems.

http://msdn.microsoft.com/en-us/library/aa394582(VS.85).aspx

http://msdn.microsoft.com/en-us/library/aa394189(VS.85).aspx

http://www.codeproject.com/KB/system/logonsessions.aspx

To be continued...