To Add a Certificate That Identifies a Rights–Compliant Application

Choose File > Tools > Protection > Applications .
The Trusted Applications dialog opens.
Select the certificate(s).
MicroStation should use to recognized rights-compliant applications in a protected file.
Click the Add trusted signing certificate icon.
The Add Trusted Signing Certificate dialog opens.
Do one of the following:

Select a digital certificate from his personal certificate store.

or
Select a signed e-mail message file (.msg) or a certificate file (.cer or .p7)
(Optional) Enter a date the certificate expires.
Click OK.
A rights-compliant certificate is added to the file.

Note: The PROTECT COMPLIANT [ADD | DELETE] command can also be used to add or remove a digital certificate from the list of authorized applications.