Former mediaserver still has EMM registry keys

Hi

We have two servers (Windows 2008R2, nb client 7.6.0.1) and they used to be mediaservers.
Mediaserver software was uninstalled, servers rebooted and ordinary client software was installed.
Everything is working fine, except that both these servers windows eventlog is filled up with errors.
"EMM interface initialization failed, status = 333"

When I asked for the registry key "HKEY_LOCAL_MACHINE\SOFTWARE\VERITAS\NetBackup"
I found this key ""EMMSERVER"="masterservername" in "CurrentVersion\Config"

Simply removing the servername or the entire key does not stop the eventlog from piling up with error messages.
Does anyone know which registry keys that also have to be deleted ?

Regards

Per