Office Interop - Adding Outlook Region Form

Question

I'm trying to add a Region Form(created in Outlook 2010) to Visual Studio Outlook 2010 addin project. Saving the form as an .ofs file works fine. But when I try to add it to the project in Visual Studio I got the following error in the Create Region Form wizard.

unable to cast com object of type 'System.__ComObject'

to interface type 

'Microsoft.Vbe.Interop.Forms.UserForm'

This operation failed because the QueryInterface call 

on the COM component for the interface with IID "......" failed 

due to the following error: Interface not registered

(Exception from HRESULT:0x80040155)

Any help will be appreciated..

Answer 1

Hi dopache,

 

Thanks for posting in the MSDN Forum.

 

Would you please give me a description for your form region, tell me which controls you used in the form region and tell me the set in the create region form wizard.

 

Have a good day,

 

Tom

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Tom Xu [MSFT]
MSDN Community Support | Feedback to us

Answer 2

I'm having the same problem. I just added a "To" field and a "Subject" field. I put it as a seperate form region standard message class is IPM.Note. When I import the .ofs file to office 2012 I get the error

Unable to cast COM object of type 'System._ComObject' to interface type 'Microsoft.Vbe.Interop.Forms.UserForm'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{04598FC8-866C-11CF-AB7C-00AA00C08FCF}' failed due to the following error: Interface not registered (Exception from HRESULT: 0X80040155).

If anyone came across this problem and solved it , pls help :)

 

Answer 3

Did anyone ever solve this???  Having same issue with no help so far..