HKLM\SYSTEM\CurrentControlSet\Services\RemoteAccess\
The Accounting subkey stores configuration data for Routing and Remote Access accounting providers, such as Windows and RADIUS. Accounting providers record connection information in log files.
The Accounting subkey does not contain any entries. It contains a Providers subkey which contains entries that apply to all dial-up accounting providers and subkeys representing each provider, which store provider-specific entries.