Sharepoint - Products Configuration Wizard - Failed to register SharePoint Services

I resolved the issue. It appears based on the Microsoft Knowledge Base information that:

Some document-conversion services in SharePoint Server are not secure when they run in a particular environment

In order to allow the services to continue to run, the following registry key needs to be added:

Name: AcknowledgedRunningOnAppServer
Type: DWORD
Value: 1

to the following locations:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office Server\{version}\LauncherSettings
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office Server\{version}\LoadBalancerSettings

replacing {version} with your version number (14 for me).

After adding these keys, re-run the Products Configuration Wizard and it should succeed.

I was still having the same error, even after adding the registry entries.

It turns out that the Net.Tcp Port Sharing Service was disabled, once I enabled it and started, I re-ran the Configuration Wizard again and it went past stage 5.