js增加信任站点后的问题

我用如下代码修改了注册表里的信任站点。设置成功了，但是在ie工具那里删除信任站点的时候就删除不了了。请问有什么办法可以删除信任站点。谢谢~
<%@ page contentType = "text/html;charset=GBK"%>
<html>
<head>
<script>
var WshShell=new ActiveXObject("WScript.Shell");
WshShell.RegWrite("HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\ZoneMap\\Domains\\china.net","");
WshShell.RegWrite("HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\ZoneMap\\Domains\\china.net\\www","");
WshShell.RegWrite("HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\ZoneMap\\Domains\\china.net\\www\\http","2","REG_DWORD");
WshShell.RegWrite("HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\ZoneMap\\Ranges\\Range1\\","");
WshShell.RegWrite("HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\ZoneMap\\Ranges\\Range1\\http","2","REG_DWORD");
WshShell.RegWrite("HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings\\ZoneMap\\Ranges\\Range1\\:Range","192.168.1.1");
</script>
<title>ss</title>
</head>
<body>
添加信任站点成功！
</body>
</html>