How to Troubleshoot a "Error 1904: Module [filename] failed to register" error message
SYMPTOMS
When installing the Sperry Software add-in, you receive the following error message:
Error 1904: Module [filename] failed to register
CAUSE
The most common cause for this error is that you are not using Outlook 2000 or higher.
RESOLUTION
Make sure that you are using Outlook 2000 or higher, not Outlook Express
COMMENTS You can tell which version of Outlook you have by going to Help...About Microsoft Outlook. It should be something like the following: 9.x.x.x Outlook 2000 10.x.x.x Outlook 2002 / XP 11.x.x.x Outlook 2003 12.x.x.x Outlook 2007
If it says 6.x.x you are using Outlook Express and you can contact us for a refund.