By default, Microsoft Publisher does not trust add-ins. The default security level is set to High, which means that only signed macros from trusted sources will be allowed to run. Unsigned macros are automatically disabled.
To run an add-in that does not have a digital signature, or an add-in that is signed by someone who is not on your list of trusted sources, you first need to change the security level to Medium, and then choose to disable or enable macros.
- On the Tools menu, point to Macro, and then click Security.
- Click the Security Level tab.
- Click Medium.
- Click OK.
- Restart Publisher.
- In the Security Warning dialog box, if the add-in is digitally signed, the Always trust macros from this publisher check box will be available. Select this check box if you want to add the publisher to your list of trusted publishers.
If you choose this option, the Security Warning dialog box will not be displayed in the future when you start an add-in that is digitally signed by this publisher.
- Click Disable Macros or Enable Macros.