用Javascript创建ActiveXObject的程序

<script language="javascript" type="text/javascript">
    var msComm1 = null;  
 
    try {  
        msComm1 = new ActiveXObject("MSCOMMLib.MSComm.1");  
    }  
    catch (err) {}  
     
    if ((typeof (msComm1) == "undefined") || (msComm1 == null)) {  
        alert("msComm1 is null");
    } 
    else
    {
        alert("OK!!!!!!!!!!!!!!  msComm1 is not null");
    }

    </script>

注意： 要先在服务器上注册MSComm。  在客户端还要设置IE的ActiveX安全属性