Exception Details: System.Runtime.InteropServices.COMException: Word was unable to read this document. It may be corrupt. Try one or more of the following:
- Open and Repair the file.
- Open the file with the Text Recovery converter.] Microsoft.Office.Interop.Word.Documents.Add(Object& Template, Object& NewTemplate, Object& DocumentType, Object& Visible) +0
When running the solution through IIS on app server I'm getting this error. It's working fine in local. Tried both: changing Microsoft Word 97 - 2003 Document Authentication to none in DCOM Config and Interactive user permissions in security. And all required permissions are provided to the IIS user.
Adding IIS user as an admin on app server resolved the issue.
Refer below URL to add a new user/admin on windows server. https://social.technet.microsoft.com/wiki/contents/articles/13436.windows-server-2012-how-to-add-an-account-to-a-local-administrator-group.aspx