If you are refering to the client DNS resolver, then this setting can't really be changed. By default queries made by the client are recursive queries. Most
applications are coded to use the default. The app though can specify what type of query to make. For instance, nslookup can be used to make a number of
different types of queries. But this is a special circumstance. Most application programmers don't what to have to write their own logic for DNS queries so the
default behavior of using recursion is the best. With this method we either get the answer or an error saying name doesn't exist.
The resolution method on a DNS server though can be changed to some extent. This may not produce the desired behavior though so use caution when
making these type of changes.
Thank you,
Mike Johnston
Microsoft Network Support
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