Retrieving the COM class factory for component error while generating word document

Question

I am trying to edit a word document from VB.NET using for the most part this code:

How to automate Word from Visual Basic .NET to create a new document

Answer 1

Go to Start -> Run
type regedit -32 and press enter key.
-- Registry Editor will get open.
Go To registry HKEY_CLASSES_ROOT\Word.Application
Select Word.Application and set full permission to below users:-
Administrator, Administrators, Local Service, System, Service, Interactive and Users.