Warning: Incorrect use of the Windows registry editor may prevent the operating system from functioning properly. Great care should be taken when making changes to a Windows registry. Registry modifications should only be carried-out by persons experienced in the use of the registry editor application. It is recommended that a complete backup of the registry and workstation be made prior to making any registry changes.

The issue is caused by a lack of permissions in the registry. Using REGEDIT, add the following permissions:

1) HKEY_CLASSES_ROOT\TypeLib
Administrators (Group)Full Control
System                                                Full Control
Server Operators                               Full Control
Authenticated Users                          Read ( Query Value , Enumerate Subkeys, Notify, Read Control)
Creator Owner                                   Full Control

2) HKEY_CLASSES_ROOT\Interface

Administrators (Group)                      Full Control
System                                                 Full Control
Server Operators                                Full Control
Authenticated Users                           Read ( Query Value , Enumerate Subkeys, Notify, Read Control)
Creator Owner                                     Full Control