求救：关于操作Word文件的问题

[cbw99]

在Winform里我用C#操作Word文件，用WebBrowser显示Word文件，但是在使用WebBrowser的“ExecWB”方法保存Word文件后，再用Word对象打开该文件时就会报如下错误：“未处理的“System.Runtime.InteropServices.COMException”类型的异常”，我操作Word的代码如下：
string sFileName="c:\temp.doc";
object objFileName = (object)sFileName;

Word.Application Word_App = null;
Word.Document Word_doc=null;
Word.Shape oShape=null;
Word_App = new Word.Application();
Word_doc=new Word.Document();
Word.Documents Docs = Word_App.Documents;
Word_App.Visible=false;
Word._Document my_Doc= (Word._Document) Word_doc;

Word_doc=Docs.Open(ref objFileName,ref refmissing,ref refmissing,ref refmissing,ref refmissing,ref refmissing,ref refmissing,ref refmissing,ref refmissing,ref refmissing,ref refmissing,ref refmissing);
错误报在最后一句话的“Open”方法上。
请问各位大侠这是怎么回事啊？

[cbw99]

有没有人知道阿

[cbw99]

高手帮帮忙啊

[pursuer]

建议使用RichTextBox控件来显示WORD文档

[「已注销」]

Object oMissing = System.Reflection.Missing.Value;
Word.Application Word_App=new Word.Application();
Word.Document Word_doc=new Word.Document();
Word.Documents Docs = Word_App.Documents;
Word._Document my_Doc= (Word._Document) Word_doc;
object FileName=Server.MapPath(".")+"/aa.doc";
Word_doc=Docs.Open(ref FileName,ref oMissing, ref oMissing, ref oMissing,ref oMissing,ref oMissing,ref oMissing,ref oMissing,ref oMissing,ref oMissing,ref oMissing,ref oMissing,ref oMissing,ref oMissing,ref oMissing);
Word_App.Visible =true;