Have you ever wanted to utilise the Windows service to run background tasks on your Windows server? Use the following starter guides to help you kick start your Windows Service projects.
For Visual Studio 2005. A guide posted by The Reddest to creating a simple Windows Service in C# will help get you started.
http://www.switchonthecode.com/tutorials/creating-a-simple-windows-service-in-csharp
For Visual Studio 2008. The MSDN has a good walkthrough guide here:
http://msdn.microsoft.com/en-us/library/zt39148a(v=vs.80).aspx