This process provides you with additional time to install the Active X at your convenience.For anyone who has not installed the Active X prior to the Update, it will be required to be installed at that time.
This update process should be kicked-off by checking the server for updates when your control is loaded in IE.
If you are unable to install the add-on, make sure you are logged in as a local administrator on the machine.
Net Documents will occasionally have an Update that includes an update to the Active X add-on.
The first and simplest is to simply reinstall the browser.
This is by far the fastest way to solve the problem, particularly if you are using Internet Explorer.