跪求!C# 调用Interop.Word时,WORD程序都会启动.怎么才能让word不启动呢?

Question

Microsoft.Office.Interop.Word.ApplicationClass app = new Microsoft.Office.Interop.Word.ApplicationClass();
Microsoft.Office.Interop.Word.Document doc = null;
object missing = System.Reflection.Missing.Value;
object file = strWordFileName;
object readOnly = false;
object isVisible = true;
try{
doc = app.Documents.Open(ref file, ref missing, ref missing,
ref missing, ref missing, ref missing, ref missing, ref missing,
ref missing, ref missing, ref missing, ref missing, ref missing,
ref missing, ref missing, ref missing);
doc.ActiveWindow.Selection.WholeStory();
doc.ActiveWindow.Selection.Copy();
rtxbContent.ClipboardPaste();
app.Documents.Close();

                }

Answer 1

object isVisible = false; 呢？