Program.cs

using System.Collections.Generic;
using System.IO;

namespace Rtf2HtmlMod
{
    internal static class Program
    {
        public static void Main(string[] args)
        {
            //var rtfInput = GetArg(args, 0, "Document.rtf");

            //var rtf = File.ReadAllText(rtfInput);

            ////var xaml = RtfToXamlConverter.RtfToXaml(rtf);
            ////File.WriteAllText("xaml.xaml", xaml);

            ////var rtf2 = RtfToXamlConverter.XamlToRtf(xaml);
            ////File.WriteAllText("rtf2.rtf", rtf2);

            ////var plainText = RtfToPlaintTextConverter.RtfToPlainText(rtf);
            ////File.WriteAllText("text.txt", plainText);

            //var htmlOutput = GetArg(args, 1, Path.ChangeExtension(rtfInput, ".html"));
            //var contentUriPrefix = Path.GetFileNameWithoutExtension(htmlOutput);
            //var htmlResult = RtfToHtmlConverter.RtfToHtml(rtf, contentUriPrefix);
            //htmlResult.WriteToFile(htmlOutput);

            var rtf = File.ReadAllText(@"C:\Users\Administrator\Desktop\test.rtf");

            var htmlOutput = @"D:\test12.html";
            var contentUriPrefix = Path.GetFileNameWithoutExtension(htmlOutput);
            var htmlResult = RtfToHtmlConverter.RtfToHtml(rtf, contentUriPrefix);
            htmlResult.WriteToFile(htmlOutput);
        }

        private static string GetArg(IList<string> args, int index, string defaultValue)
        {
            if (args == null || args.Count <= index) return defaultValue;
            return args[index];
        }
    }
}