Autorun application

Question

Hello all. I have an application that I made that I require to start automatically when windows starts. I know I need to make a windows service for it, I'm just not sure how to make a windows service. I need this service to be installed either during my installation process of my application or I need it to be installed by the program itself. Ontop of that, I need to know if it is possible to stop the windows admin messages from popping up everytime the program starts through the service. Thanks.