If you have installed Internals Viewer but there is no add-in check the following registry settings and ensure
is set to 1
SQL Server 2005
HKEY_CURRENT_USER\Software\Microsoft\Microsoft SQL Server\90\Tools\Shell\Addins\InternalsViewer.SSMSAddIn.Connect
SQL Server 2008
HKEY_CURRENT_USER\Software\Microsoft\Microsoft SQL Server\100\Tools\Shell\Addins\InternalsViewer.SSMSAddIn.Connect
If the LoadBehavior registry entry is missing the following files should be imported:
If you are having other issues with the application please log them in the Issue Tracker.