I am new to wp7 I want to create an application which should start automatically without user starting it. Something similar to automatic virus scan on any PC.
Any sugge
Applications must be started by the user. Depending on what you are attempting to build, a PeriodicTask might be suitable. It allows you to run code for ~25 seconds every ~30 minutes.
However, the caveat is that this cannot occur after installation - the user must have run the application at least once. In additional, if the user does not re-run your main application (allowing you to re-create the task), it will stop being scheduled after 2 weeks.