The DNS server encountered an invalid preference value "%1" in zone file %2 at line %3. The preference must be a valid 16-bit ...

The DNS server encountered an invalid preference value "%1" in zone file %2 at line %3.  The preference must be a valid 16-bit unsigned integer. To correct the problem, modify the preference field to a valid value. The zone file %2 is located in the %SystemRoot%\System32\Dns directory.