http://blogs.msdn.com/alimaz/archive/2008/01/23/event-id-10016-6482-and-6398-after-installing-sp1.aspxIssue: You are getting lots of 10016 DCOM errors and possibly related 6482 and 6398 after installing MOSS SP1: Event Type: Error Event Source: DCOM Event Category: None Event ID: 10016 Date: 12/14/2007 Time: 9:54:49 AM User: LITWAREINC\SP_AdmWorkerProcessen-USCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/alimaz/archive/2008/01/23/event-id-10016-6482-and-6398-after-installing-sp1.aspx#7213225Thu, 24 Jan 2008 02:21:39 GMT91d46819-8472-40ad-a661-2c78acb4018c:7213225Christopher_G_Lewis<p>What about granting the IIS_WPG group &quot;Local Activation&quot; rights in DCOM to OSearch? &nbsp;</p> <p>This seems to fix it for me, per this article: <a rel="nofollow" target="_new" href="http://blog.justinho.com/CommentView,guid,00aaeeb7-012d-4362-acdf-c6b2afd97258.aspx">http://blog.justinho.com/CommentView,guid,00aaeeb7-012d-4362-acdf-c6b2afd97258.aspx</a></p>http://blogs.msdn.com/alimaz/archive/2008/01/23/event-id-10016-6482-and-6398-after-installing-sp1.aspx#9564540Thu, 23 Apr 2009 14:25:27 GMT91d46819-8472-40ad-a661-2c78acb4018c:9564540Iftikhar Mahmood<p>None of the obove solutions fixed my problem.</p>