Automated SSH Client (run as windows service)

I need to develop a application that i can run as a windows service. This application needs to securely connect to my SSH server. The application needs to automatically connect to my SSH server and open a remote port (reverse tunnel) based on a variable provided: C:\[login to view URL] 10011 389 [login to view URL] connects to the remote SSH server and authenticates and configures remote port (on SSH Server) to forward requests to "localhost:389" where localhost is the machine running App.exe. If the tunnel drops I need [login to view URL] to exit so that the Windows service manager will restart it. Security: I need to make sure that the connection is secured. I am open to ideas on how to easily implement it. Once the app is configured, we should not need to specify security information again (it should be cached/stored securely) so that when [login to view URL] is run again only remote/local ports need to be set.