Exception when creating Word 2019 application with administrator authority

Yun Hee Ro 11 Reputation points


I am providing translated content. Please forgive any grammatical errors.

I have a program developed using C# and referencing the Microsoft.Office.Interop.Word assembly.

  • Assembly Version:
  • Development Environment: Windows 10 (64-bit), Visual Studio 2019
  • Office Version: 2019

Microsoft.Office.Interop.Word.Application wordApp = new Microsoft.Office.Interop.Word.Application();

The above code worked normally on a PC with Word 2013 installed, but an exception occurs on a PC with Word 2019 installed.

Exception message:
Retrieving the COM class factory for component with CLSID {000209FF-0000-0000-C000-000000000046} failed due to the following error: 80080005 Server execution failed (Exception from HRESULT: 0x80080005 (CO_E_SERVER_EXEC_FAILURE)).

If the requestedExecutionLevel level value is "requireAdministrator" in the app.manifest file of the C# project, the error is generated.
(If you switch to asInvoker, there will be no errors.)

<requestedExecutionLevel level="requireAdministrator" uiAccess="false" />

When I checked with the task manager, the Word process came up in the background process and disappeared.

The developed program must be executed with administrative authority and must be configured as a requireAdministrator.
Can't I run Word 2019 if I set it like this?

Why do I get errors in Word 2019 instead of in Word 2013?
I would like to know the cause and solution of the error in Word 2019.

Please answer about my question.
Thank you.

(+) Addition
It's not a problem when debugging the project, but when I run it as an executable, a problem occurs.

Word Management
Word Management
Word: A family of Microsoft word processing software products for creating web, email, and print documents.Management: The act or process of organizing, handling, directing or controlling something.
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