//--- Well-formed HTML fragment to be inserted into the document.
string htmlFragment = @"<p><b>Hello,</b><i> World</i>!</p>";

//--- Open an existing Word document with the SoftArtisans WordApplication object.
WordApplication wApp = new WordApplication();
Document doc = wApp.Open("myDoument.doc");

//--- Create the HTMLToWord object.
HTMLToWord h2w = new HTMLToWord();

//--- Insert the HTML fragment at the end of the document.
//--- Use the default style.
h2w.InsertHTML(htmlFragment, doc, null, doc);

'--- Well-formed HTML fragment to be inserted into the document.
Dim htmlFragment As String = "<p><b>Hello,</b><i> World</i>!</p>"

'--- Open an existing Word document with the SoftArtisans WordApplication object.
Dim wApp As WordApplication = new WordApplication
Dim doc As Document = wApp.Open("myDoument.doc")

'--- Create the HTMLToWord object.
Dim h2w As HTMLToWord = new HTMLToWord

'--- Insert the HTML fragment at the end of the document.
'--- Use the default style.
h2w.InsertHTML(htmlFragment, doc, Nothing, doc)