How to manually remove a service

When performing an Oracle deinstall, sometimes services are left behind, such as the TNSListener Service. In order for you to get rid of it, there are two options, first one, remove it from the regedit, this choice must be carefully executed, you don't want to remove other service.
1. Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services
2. Locate the service name, right click it and select Delete

It is always advisable to have a regedit backup prior to performing this task.

The second choice is the sc command
sc delete

This command is also used to manually create services
sc create

The complete syntax options for the sc command line utility is:
DESCRIPTION:
SC is a command line program used for communicating with the
NT Service Controller and services.
USAGE:
sc