http://forums.iis.net/1039.aspxForum targeting resolving issues on the IIS platform including tools such as DebugDiag, WFetch, etc.enCommunityServer 2007 SP1 (Build: 20510.895)http://forums.iis.net/thread/1910047.aspxSun, 12 Jul 2009 20:58:16 GMT50bcf3b4-f6fe-4638-adff-0c150e922e99:1910047steve schofield0http://forums.iis.net/thread/1910047.aspxhttp://forums.iis.net/commentrss.aspx?SectionID=1039&PostID=1910047<p>Are you doing it in IIS Manager or Computer Manager?&nbsp; Try just the IIS Manager to see if it works.</p>http://forums.iis.net/thread/1910025.aspxSun, 12 Jul 2009 07:11:13 GMT50bcf3b4-f6fe-4638-adff-0c150e922e99:1910025phyrephly0http://forums.iis.net/thread/1910025.aspxhttp://forums.iis.net/commentrss.aspx?SectionID=1039&PostID=1910025<p>When i try to enable All unknown isapi extensions i get an MMC error.</p> <p>There is nothing strange in the event viewer.</p> <p>The&nbsp;MMC&nbsp;error says the following:</p> <p>&nbsp;</p> <p>MMC has detected an error in the snap-in. It is recommended that you shut down MMC and restart it.&nbsp;</p> <p>&nbsp;</p> <p>&nbsp;</p>