Word Interop - Start as specific user

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C#

I am using word interop on an intranet environment (asp.net - c# code) to create a bunch of documents from templates. Anonymous login is disabled and security is set to integrated windows authentication

I want to use a service account to create a word doc. Once the document is created, the user is redirected to the document (to open it).

How do I do this?
There does not seem to be an option to pass a set of credentials.

This is the code I am using to create a new document. oTemplatePath is the path to the template.dot file

using Word = Microsoft.Office.Interop.Word;

Word.Application oWord = new Word.Application();
Word.Document oWordDoc = oWord.Documents.Add(ref oTemplatePath, ref oMissing, ref oMissing, ref oMissing);

I found the answer here[^]

A nice little impersonation class written by Uwe Keim[^]