HKLM\SYSTEM\CurrentControlSet\Services\DnsCache\
The DNSCache\Parameters subkey stores configuration data for the DNS caching resolver service of the DNS client. This service saves the responses to DNS queries so that the DNS server is not repeatedly queried for the same information.
Tip
To configure DNS dynamic update, see the
following entries in the Tcpip subkey:
DefaultRegistrationTTL
EnableAdapterDomainNameRegistration
DisableDynamicUpdate
DisableReplaceAddressesInConflicts
DisableReverseAddressRegistrations
UpdateSecurityLevel