ASP.Net Com-InterOp WORD issue after hosting in windows server

Question

I have created a C#(.Net framework) API to convert Word to PDF using interop.word.dll. I have installed MS Office 2016 on the server. However, even when no one is logged on the server, I am getting the below exception.

"Retrieving the COM class factory for component with CLSID {000209FF-0000-0000-C000-000000000046} failed due to the following error: 8000401a The server process could not be started because the configured identity is incorrect. Check the username and password. (Exception from HRESULT: 0x8000401A"

Does anyone have any solution for this?

Answer 1

Office automation (COM interop) is a desktop feature and not recommend for use on a server.

https://support.microsoft.com/en-us/topic/considerations-for-server-side-automation-of-office-48bcfe93-8a89-47f1-0bce-017433ad79e2

Alternatively, please suggest other options for converting Word files to PDF.

Search NuGet for a Word to PDF .NET Framework library. There are a lot of libraries to choose from. Read the docs and find a solution that fits your needs.

https://www.nuget.org/

https://www.nuget.org/packages?q=Word+to+PDF