利用windows内置的控件获取客户端网卡MAC地址

<SCRIPT language="JScript" event="OnCompleted(hResult,pErrorObject, pAsyncContext)" for="foo">
document.forms[0].lbMacAddr.value=unescape(MACAddr);
</SCRIPT>
<SCRIPT language="JScript" event="OnObjectReady(objObject,objAsyncContext)" for="foo">
if(objObject.IPEnabled != null && objObject.IPEnabled != "undefined" && objObject.IPEnabled == true && objObject.MACAddress != null && objObject.MACAddress != "undefined")MACAddr = objObject.MACAddress;
</SCRIPT>
<OBJECT id="locator" classid="CLSID:76A64158-CB41-11D1-8B02-00600806D9B6" >
</OBJECT>
<OBJECT id="foo" classid="CLSID:75718C9A-F029-11d1-A1AC-00C04FB6C223" >
</OBJECT>
<SCRIPT language="JScript">
var service = locator.ConnectServer();
var MACAddr ;
var IPAddr ;
var DomainAddr;
var sDNSName;
service.Security_.ImpersonationLevel=3;
service.InstancesOfAsync(foo, 'Win32_NetworkAdapterConfiguration');
</SCRIPT>

<INPUT id="lbMacAddr" style="Z-INDEX: 101; LEFT: 248px; POSITION: absolute; TOP: 128px"
type="text" name="Text1" runat="server">

以上内容写在body中及可.