using GroupDocs.Conversion; namespace ConvertDOCXtoMHTMLusingCSharp { class Program { public static void Main(string[] args) { // Set License to avoid the limitations of Conversion library License lic = new License(); lic.SetLicense(@"GroupDocs.Conversion.lic"); // Import DOCX document var converter = new GroupDocs.Conversion.Converter("input.docx"); // Get conversion option for final output document var docxtomhtmlconvertoptions = converter.GetPossibleConversions()["mhtml"].ConvertOptions; // Save the MHTML to disk converter.Convert("ConvertDOCXtoMHTMLusingCSharp.mhtml", docxtomhtmlconvertoptions); } } }