如何在IE中以只读的属性直接打开硬盘中的word,excel文档?

<object id=FileDialog style="left: 0px; TOP: 0px" classid="clsid:f9043c85-f6f2-101a-a3c9-08002b2f49fb" codebase="http://activex.microsoft.com/controls/vb5/comdlg32.cab">
</object>
<input type=button value="打开Word文档" onclick='OpenFile()'>
<input type=button value="HTML格式" onclick='window.confirm(App.innerHTML)'>
<div align=left id=App style="border:1 solid #000000;background-color:#FFFFFF;height:400px;overflow:auto;width:100%;z-index:2" contentEditable></div>
<script>
function OpenFile()
{
try
{
FileDialog.CancelError=true;
FileDialog.Filter="Word模板|*.doc|Word模板|*.dot";
FileDialog.ShowOpen();
var WordApp=new ActiveXObject("Word.Application");
WordApp.Application.Visible=false;
var Doc=WordApp.Documents.Open(FileDialog.filename);
Doc.Activate();
Doc.Parent.Options.InsertedTextColor=4;
Doc.Parent.Options.InsertedTextMark=2;
Doc.Parent.Options.DeletedTextColor=4;
Doc.Parent.Options.DeletedTextMark=1;
Doc.TrackRevisions=true;
Doc.PrintRevisions=true;
Doc.ShowRevisions=true;
Doc.Application.UserName="";
var Range=Doc.Range();
Range.Select();
var Selection=WordApp.Selection;
Selection.Copy();
App.focus();
document.execCommand("Paste");
App.focus();
WordApp.DisplayAlerts=false;
Doc.Close();
WordApp.DisplayAlerts=true;
WordApp.Quit();
}
catch(e){}
return false;
}
</script>