string fileName = System.IO.Path.GetFileNameWithoutExtension(file.FileName);
                Word.Application word = new Word.Application();
                Type wordType = word.GetType();
                Word.Documents docs = word.Documents;
                Type docsType = docs.
 
GetType();
                //第二個引數設定為false，不開啟word確認檔案轉換視窗，特別是在office2016的環境下
                Word.Document doc = (Word.Document)docsType.InvokeMember("Open", System.Reflection.BindingFlags.InvokeMethod, null, docs, new Object[] { fullPath, false, true });
                Type docType = doc.GetType();
                if
 
 (Directory.Exists(Server.MapPath("~/html")) == false)
                {
                    Directory.CreateDirectory(Server.MapPath("~/html"));
                }
                string strSaveFileName = Server.MapPath("~/html") + @"\" + fileName + ".html";
                object saveFileName = (object)
 
strSaveFileName;
                docType.InvokeMember("SaveAs", System.Reflection.BindingFlags.InvokeMethod, null, doc, new object[] { saveFileName, Word.WdSaveFormat.wdFormatFilteredHTML });
                docType.InvokeMember("Close", System.Reflection.BindingFlags.InvokeMethod, null, doc, null);
                wordType.InvokeMember("Quit", System.Reflection.BindingFlags.InvokeMethod, null, word, null);