"The custom form could not be opened Outlook will use an Outlook form instead" error message when you use the Outlook 2000 object model to reference an item that requires a custom form

If you use the Outlook object model to reference an item that requires a custom form, you may receive the following error message: This may prevent the completion of your program.

This error can also occur if the item uses a custom form written in C++ and that form does not implement IDispatch. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:

To resolve this problem, obtain Microsoft Office 2000 Service Release 1/1a (SR-1/SR-1a).

To obtain SR-1/SR-1a, click the article number below to view the article in the Microsoft Knowledge Base: The SR-1 update suppresses the warning message and loads the default form so that your program can continue.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article. This problem was corrected in Microsoft Office 2000 SR-1/SR-1a.