error while trying to open a Word application in C#

Question

i am getting the following error while trying to open a Microsoft word document from within a c# VS.NET 2010 windows forms application.

"Retrieving the COM class factory for component with CLSID {000209FF-0000-0000-C000-000000000046} failed due to the following error: 80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))."

I am using a Windows 7 64 bit OS.

I have added the Microsoft.Office.Interop.Word in the project > references

i have set the Build platform to target x86 enviroment

using Word = Microsoft.Office.Interop.Word;
var wordApp = new Word.Application() {Visible = true}; <-- ERROR

What am I doing wrong?

Seems that you have not MS Office installed on that machine. — Tigran
– Tigran, Commented Aug 2, 2011 at 9:19
I have Microsoft word Starter 2010 installed on my PC. Should that make a difference? — Fraiser
– Fraiser, Commented Aug 2, 2011 at 9:21

porges · Accepted Answer · 2011-08-02 09:20:54Z

2

It seems that Word starter edition doesn't support automation.

answered Aug 2, 2011 at 9:20

porges

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Dirk Vollmar · Accepted Answer · 2011-08-02 09:19:57Z

0

It seems that either

Word is not (correctly) installed on the machine, or
the platform target of your application is not set to x86 (you can do so under Project -> Properties).

Both are required for Word automation to work on an x64 system.

answered Aug 2, 2011 at 9:19

Dirk Vollmar

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