Microsoft JScript运行时错误：Automation服务器不能创建对象

Question

        <script type="text/javascript">
            var strSaveLocation = "D:\\1.xlsx";    
            function createXLS() {               
                var excel = new ActiveXObject("Excel.Application");             
                var workBook = excel.Workbooks.adds();              
                workBook.SaveAs(strSaveLocation);
                workBook.Saved = true;
                excel.Quit();  
            }          
            function writeXLS() {
                var excel = new ActiveXObject("Excel.Application");              
                var workBook = excel.Workbooks.add();              
                var sheet = workBook.Worksheets(1);             
                sheet.Cells(1, 1).value = "测试数据";                
                workBook.SaveAs(strSaveLocation);
                workBook.Saved = true;
                excel.Quit();
            }            
        </script>

<button onclick="createXLS()"> 创建</button>
<button onclick="writeXLS()"> 重写</button>

当我点击创建按键后想要创建一个Excel文档，但是这时脚本会报错：
我尝试了很多的方法都没有解决问题，特来求助。
我的系统:win7，开发工具:vs2012,浏览器:IE8

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李东洋