To fix MYOB emailing invoices open regedit and go to HKEY_CLASSES_ROOT\Interface\{00063001-0000-0000-C000-000000000046}\TypeLib and ensure there is only 1 subkey

Outlook 2007 – Version 9.3

Outlook 2010 – Version 9.4

Outlook 2013 – Version 9.5

Outlook 2016 – Version 9.6

Outlook 2019 – Version 9.7

If there is a wrong subkey higher than the one you need, delete it.

 

For Excel go to HKEY_CLASSES_ROOT\TypeLib\{00020813-0000-0000-C000-000000000046}\TypeLib and check the same.

By Matthew