The DNS server encountered an invalid host (A) resource record in zone file {0} at line {1}. The use of A resource records ...

The DNS server encountered an invalid host (A) resource record in zone file {0} at line {1}.  The use of A resource records (RRs) must be at a domain name within the zone, with the exception of glue A RRs which are used to resolve the host name specified in an NS RR also contained at the same domain node and used for a zone delegation.  Although the DNS server continues to load, ignoring this RR, it is strongly recommended that you either correct this RR or remove it from the zone file.  The zone file is located in the %SystemRoot%\System32\Dns directory.  For more information, see "Delegating zones" in the online Help.