如何利用HTMl调用Dll文件里的函数！！！！！！！！
亲们，谁知道如何用HTML调用dll文件，听说是先注册到注册表，然后再html里写<object .....这个标签调用它的calassid,我不太明白calssid是什么东西，怎么来的，
具体怎么用请可谓大侠详细解说一下，小弟在线等待，拜托了......... HTML 注册表 调用dll文件
[解决办法]
<object id="myAxControlTest" width="180" height="20" codebase="MyAtx.cab" classid="clsid:8173BE03-E29B-49CB-A4B4-52778F6E37E5">
</object>
//与该html同路径放有 activex插件

//获取activex插件的值
//alert(document.getElementById("myAxControlTest").IsHaveFile);//IsHaveFile为插件公开的方法名
[解决办法]
classid对应插件的Guid

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;

using System.IO;
using System.Runtime.InteropServices;
namespace ActiveXTestLib
{
    [GuidAttribute("8173BE03-E29B-49CB-A4B4-52778F6E37E5"),ProgId("ActiveXTestLib.MyAxControlTest"), ComVisible(true)] 
    public partial class MyAxControlTest : UserControl,IObjectSafety
    {
        public MyAxControlTest()
        {
            InitializeComponent();
        }   

        public string InputText
        {

            get { return textBox1.Text; }
            set { textBox1.Text = value; }
        }

       
 
     
        public string IsHaveFile()
        {   
           return GetFiles(new DirectoryInfo(@"D:\zxy"), "*.*").ToString();
        }

...........
        

        #region IObjectSafety 成员

        private const string _IID_IDispatch = "{00020400-0000-0000-C000-000000000046}";
        private const string _IID_IDispatchEx = "{a6ef9860-c720-11d0-9337-00a0c90dcaa9}";
        private const string _IID_IPersistStorage = "{0000010A-0000-0000-C000-000000000046}";
        private const string _IID_IPersistStream = "{00000109-0000-0000-C000-000000000046}";
        private const string _IID_IPersistPropertyBag = "{37D84F60-42CB-11CE-8135-00AA004BB851}";

        private const int INTERFACESAFE_FOR_UNTRUSTED_CALLER = 0x00000001;
        private const int INTERFACESAFE_FOR_UNTRUSTED_DATA = 0x00000002;
        private const int S_OK = 0;
        private const int E_FAIL = unchecked((int)0x80004005);
        private const int E_NOINTERFACE = unchecked((int)0x80004002);

        private bool _fSafeForScripting = true;
        private bool _fSafeForInitializing = true;

        int IObjectSafety.SetInterfaceSafetyOptions(ref Guid riid, int dwOptionSetMask, int dwEnabledOptions)
        {
            int Rslt = E_FAIL;

            string strGUID = riid.ToString("B");
            switch (strGUID)
            {
                case _IID_IDispatch: 
 
                case _IID_IDispatchEx:
                    if (((dwEnabledOptions & dwOptionSetMask) == INTERFACESAFE_FOR_UNTRUSTED_CALLER) &&
                         (_fSafeForScripting == true))
                        Rslt = S_OK;
                    break;
                case _IID_IPersistStorage:
                case _IID_IPersistStream:
                case _IID_IPersistPropertyBag:
                    if (((dwEnabledOptions & dwOptionSetMask) == INTERFACESAFE_FOR_UNTRUSTED_DATA) &&
                         (_fSafeForInitializing == true))
                        Rslt = S_OK;
                    break;
                default:
                    Rslt = E_NOINTERFACE;
                    break;
            }

            return Rslt;
        }

        int IObjectSafety.GetInterfaceSafetyOptions(ref Guid riid, ref int pdwSupportedOptions, ref int pdwEnabledOptions)
        {
            int Rslt = E_FAIL; 
 

            string strGUID = riid.ToString("B");
            pdwSupportedOptions = INTERFACESAFE_FOR_UNTRUSTED_CALLER 
[解决办法]
 INTERFACESAFE_FOR_UNTRUSTED_DATA;
            switch (strGUID)
            {
                case _IID_IDispatch:
                case _IID_IDispatchEx:
                    Rslt = S_OK;
                    pdwEnabledOptions = 0;
                    if (_fSafeForScripting == true)
                        pdwEnabledOptions = INTERFACESAFE_FOR_UNTRUSTED_CALLER;
                    break;
                case _IID_IPersistStorage:
                case _IID_IPersistStream:
                case _IID_IPersistPropertyBag:
                    Rslt = S_OK;
                    pdwEnabledOptions = 0;
                    if (_fSafeForInitializing == true)
                        pdwEnabledOptions = INTERFACESAFE_FOR_UNTRUSTED_DATA;
                    break;
                default:
                    Rslt = E_NOINTERFACE; 
 
                    break;
            }

            return Rslt;
        }

     

        #endregion

        private void MyAxControlTest_Load_1(object sender, EventArgs e)
        {
     
        }
    }
}

[解决办法]
需要写一个ActiveX插件，VS有模板
发布后便会有一个Guid暴露出来，用户拿着它就可以像flash那样在html使用