Command to close an application of console?

By close, do you mean you want the current instance of the console app to close, or do you want the application process, to terminate? Missed that all important exit code:

Environment.Exit(0);

Or to close the current instance of the form:

this.Close();

Useful link.

Environment.Exit and Application.Exit

Environment.Exit(0) is cleaner.

http://geekswithblogs.net/mtreadwell/archive/2004/06/06/6123.aspx