The Oracle listener removal tool enables you to remove obsolete Oracle listeners from the registry.

There is no need to manually delete entries in the registry, a process that is not without risk.
With this tool you can delete obsolete Oracle listener services from the registry.
Because it's using standard Windows functions, there's no need to manually delete the registry keys, making it less of a risk to corrupt the registry.
This tool can be used by oneone who wants to remove obsolete Oracle Listener services, being it on a personal computer for testing purposes, or on a Windows database server. In order to delete Windows services, you need to have administrator rights for the account performing the deletion.
You need to have the MFC 7.1 libraries installed.
Download the Oracle Listener Removal Tool