DNSLint is a Microsoft Windows utility used to diagnose common DNS name resolution issues and Active Directory Replication Issues.
DNSLint usage:
dnslint /d performs domain name tests. diagnoses potential causes of "lame delegation" and other related DNS problems.
dnslint /ql performs DNS query tests from a list. verifies a user-defined set of DNS records on multiple DNS servers.
dnslint /ad performs Active Directory test. verifies DNS records specifically used for Active Directory replication.
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Download DNSLint Utility version 2.04 from Microsoft Downloads
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References:
http://support.microsoft.com/kb/321045
http://support.microsoft.com/kb/321046
http://technet.microsoft.com/en-us/library/cc736981(WS.10).aspx