Check which ports are open to the outside world. Helps make sure that your firewall rules are working as intended.
One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.
Use oradim to create and delete the windows services for the database.
while creating service you could specify the startup mode
Refer the link for more details
http://www.psoug.org/reference/oradim.html