When you are still using Office 2007 or Office 2010, it is also available in the Start Menu under: Office 365 64-bit (Subscription based or Click-to-Run version of Office 2016 / 2019)Ĭ:\Program Files\Microsoft Office\root\Office16.Office 365 32-bit (Subscription based or Click-to-Run version of Office 2016 / 2019)Ĭ:\Program Files (x86)\Microsoft Office\root\Office16.You can open the application by double clicking SelfCert.exe in the following location Ĭ:\Program Files\Microsoft Office\Office Ĭ:\Program Files (x86)\Microsoft Office\Office SelfCert.exe is the application called “Digital Certificate for VBA Projects”. Running your signed macro for the first time.The steps to achieve this are as follows: There is no need for that You can sign your own macros with SelfCert.exe so macros can run without lowering your Outlook security settings. Since it is not very common to have your own digital certificate, you probably set your macro security to a lower level to be able to run your macro. When you create a macro and are running Outlook with the default security settings, you are not able to run the macro at all or you’ll always get prompted first, unless you either tamper with the default security settings or sign your own code with a digital certificate.