http://blogs.msdn.com/stephen_griffin/archive/2009/01/28/more-issues-with-mapi-and-ipv6.aspxI had another issue recently where MAPI wasn’t able to connect via NSPI to the Exchange server or DC. The customer had a CDO application, running on an Exchange 2007 server on Windows 2008, using the Exchange MAPI download . In other environments, theen-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/stephen_griffin/archive/2009/01/28/more-issues-with-mapi-and-ipv6.aspx#9444175Wed, 25 Feb 2009 18:14:05 GMT91d46819-8472-40ad-a661-2c78acb4018c:9444175kiran<p>is there any other way for disabling IPV6 without modify on REGEDIT? </p>http://blogs.msdn.com/stephen_griffin/archive/2009/01/28/more-issues-with-mapi-and-ipv6.aspx#9893795Thu, 10 Sep 2009 21:25:04 GMT91d46819-8472-40ad-a661-2c78acb4018c:9893795X<p>I dont think it can be done effectively without regedit, unless stephen knows a way, that is.</p>