Good Evening
Am Sorry today i was very busy, a Bug after a Bug. I have nice steps that will help you in exactly what you want
http://2leggedspider.wordpress.com/2004/06/30/creating-a-word-document-using-aspnet-and-c/
in this Part
objWord.Selection.TypeText(".NET Rocks!!!");
objWord.Selection.TypeParagraph();
objWord.Selection.TypeText("Savage loves .NET");
where he Wrote ".NET Rocks, you can Add your html.
if you get a Problem , you might like to consider this
http://www.sautinsoft.com/products/html-to-rtf/index.php
Thanks again For Posting at Dotnetfunda
Am always here to Help
Vuyiswa Maseko