How to work with word document?

Hello,

I've just starte to program on C# and trying to develop an application that translits the text from Word document and outputs a new Word document.

I've placed a button to give the user the ability tu choose file from his computer using the OpenFileDialog class. Now I'm confused how to read text from Word document and then do some operations on it like TRANSLIT and then save the output to another new Word file.
I think to use Microsoft.Office.Interop.Word namespace, but seems that it is not available in Visual Studio Express..

Any other solutions?

thank you