When pushing a certificate to an IIS 7x server, the following error is displayed:
Install Certificate failed with error: Retrieving the COM class factory....failed due to the following error: 80040154 Class not registered...
The IIS6 Compatability Components need to be installed on:
- The Microsoft CA server
- The server that we are trying to push the certificate to.
- The director sever.
Install the IIS6 Compatability Components and retry the certificate push.
Detailed steps are available here