I created a ticker application using socket programming(c#.net) which will show messages from the server. I want the ticker should active at windows startup and run contineously like a windows service, but presently it can be closed by the user using task manager. how can i implement this feature.

Technically speaking, any user process can be closed by the user using task manager. (I can kill the windows "explorer" process and render my desktop useless.)

You could create a windows service so that it starts and stops with windows. I don't know how you add interactivity (user interfaces like forms) to a windows service however. It sounds like you need to build a task tray type application.

-Peter
peterlanoie.blog