C#生成的dll（引用了office的com控件实现文档转换），PHP调用时

          <span>string</span> fileFolder =<span> Path.GetDirectoryName(wordFilePath);
          </span><span>string</span> fileNameWithoutExtension =<span> Path.GetFileNameWithoutExtension(wordFilePath);
          </span><span>string</span> htmlFilePath = fileFolder + <span>@"</span><span>\</span><span>"</span> + fileNameWithoutExtension + <span>@"</span><span>.html</span><span>"</span><span>;

          Object objWordPath </span>=<span> wordFilePath;
          Object objHtmlPath </span>=<span> htmlFilePath;
          MSWord.Application wordApp;
          MSWord.Document wordDoc;
          Object Nothing </span>=<span> Missing.Value;
          wordApp </span>= <span>new</span><span> MSWord.ApplicationClass();
          wordDoc </span>= wordApp.Documents.Add(<span>ref</span> objWordPath, <span>ref</span> Nothing, <span>ref</span> Nothing, <span>ref</span> Nothing);<span>//</span><span>===========PHP调用时这下面的语句执行不到</span>
          <span>object</span> format =<span> MSWord.WdSaveFormat.wdFormatFilteredHTML;
          wordDoc.SaveAs(</span><span>ref</span> objHtmlPath, <span>ref</span> format, <span>ref</span> Nothing, <span>ref</span> Nothing, <span>ref</span> Nothing, <span>ref</span> Nothing, <span>ref</span> Nothing, <span>ref</span><span> Nothing,
            </span><span>ref</span> Nothing, <span>ref</span> Nothing, <span>ref</span> Nothing, <span>ref</span> Nothing, <span>ref</span> Nothing, <span>ref</span> Nothing, <span>ref</span> Nothing, <span>ref</span><span> Nothing);
          wordDoc.Close(</span><span>ref</span> Nothing, <span>ref</span> Nothing, <span>ref</span><span> Nothing);
          wordApp.Quit(</span><span>ref</span> Nothing, <span>ref</span> Nothing, <span>ref</span> Nothing);

<span>php
</span><span>$c</span>= <span>new</span> COM("ComLibrary.Test"<span>);
</span><span>echo</span> <span>$c</span>->SaveWordAsHtml("D:\\ningtao\\xampp\\htdocs\\test.doc"<span>);
</span>?>