namespace ManualTesting
{
    using System.Collections.Generic;
    using System.IO;
    using System.Net;

    internal static class ManualTesting
    {
        private static void Main()
        {
            Dictionary<string, object> dictionary = new Dictionary<string, object>
            {
                {
                    "fileKey1", new FileParameter(File.ReadAllBytes(@"C:\file1.jpg"), "file1.jpg", "image/jpeg")
                },
                {
                    "fileKey2", new FileParameter(File.ReadAllBytes(@"C:\file2.jpg"), "file2.jpg", "image/jpeg")
                },
                {
                    "fileKey3", new FileParameter(File.ReadAllBytes(@"C:\file3.jpg"), "file3.jpg", "image/jpeg")
                },
                {
                    "stringKey", "stringValue"
                }
            };

            const string userAgent = "Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/33.0.1750.154 Safari/537.36 OPR/20.0.1387.82";

            HttpWebResponse response = MultipartFormDataPost("http://example.com/post.aspx", userAgent, dictionary);
        }
    }
}