安装程序中自定义Activex安全控件安装后，卸载时注册表信息删除或修改无效

[Rock870210]

由于用到从IE上一个超链接启动客户端程序，故写了一个自定义Install类做辅助，首先写入注册表安装的信息，其次创建了一个Activex控件，并进行安全授权，这时候在注册表添加了一个GUID码，实现了未安装程序提示功能。
但是在卸载的时候出问题了，在注册表中写入的安装路径等信息，直接可以删掉，而针对Activex控件的GUID码那个注册表信息修改或删除均不见效。修改（删除）注册表是在卸载过程中执行的。
奇怪的是重新打开一个VS，创建个新项目直接操作注册表既可以修改，也可以删除。请大虾们指点一二：
安装程序用的是VS自带的安装项目
下面是相关代码：
安装程序类：

[RunInstaller(true)]
    public partial class IEInstaller : Installer
    {
//写入程序安装信息，用于在超链接中调用
protected override void OnAfterInstall(System.Collections.IDictionary savedState)
        {
            base.OnAfterInstall(savedState);
            Assembly asm = Assembly.GetExecutingAssembly();
            string path = asm.Location.Remove(asm.Location.LastIndexOf("\\")) + "\\";
            RegistryKey first = Registry.ClassesRoot.CreateSubKey("AdonlineWebIE");
            first.SetValue("", "adonlinewebieprotocol");
            first.SetValue("URL Protocol", "");
            RegistryKey second = first.CreateSubKey("shell");
            RegistryKey third = second.CreateSubKey("open");
            RegistryKey forth = third.CreateSubKey("command");
            forth.SetValue("", "\"" + path + "adonlineIE.exe\" \"%1\"");
        }
//卸载程序前删除注册表信息
protected override void OnBeforeUninstall(System.Collections.IDictionary savedState)
        {
            Registry.ClassesRoot.DeleteSubKeyTree("AdonlineWebIE");//删除安装信息（该信息删除成功）
            RegistryKey activeFirst = Registry.ClassesRoot.CreateSubKey("ADOnlineWebIEActivex");
            RegistryKey clsid = activeFirst.CreateSubKey("CLSID");
            clsid.SetValue("", "{"+Guid.NewGuid().ToString()+"}");//修改GUID码注册表（修改失败，无错误提示，就是不执行，删除也一样）
            base.OnBeforeUninstall(savedState);
        }
}

急求助！试验了一天，没搞出来！

[porschev]

下班前一顶。。。。

[Rock870210]

[Quote=引用 1 楼 porschev 的回复:]
下班前一顶。。。。
[/Quote]
谢谢，等待老马的出现。。。。

[Rock870210]

急求助呀！！！

[ZengHD]

regsvr32 /U

[Rock870210]

[Quote=引用 4 楼 zenghd 的回复:]
regsvr32 /U
[/Quote]
ZengHD指的是哪一块？刚小试了下，指定Activex控件的dll，卸载失败。还望指点

[Rock870210]

谢楼上两位，再次顶上去。。。

[Rock870210]

看来是没戏了。。。。。。。

[Rock870210]

接着求答，刚做测试，OnBeforeUninstall中修改GUID码的注册表已经修改了，但是不知道什么时候被什么程序重新还原回去了。特郁闷
贴上Activex控件代码，期待大虾的指点：

[ComImport, GuidAttribute("CB5BDC81-93C1-11CF-8F20-00805F2CD064")]
    [InterfaceTypeAttribute(ComInterfaceType.InterfaceIsIUnknown)]
    public interface IObjectSafety
    {
        [PreserveSig]
        int GetInterfaceSafetyOptions(ref Guid riid, [MarshalAs(UnmanagedType.U4)] ref int pdwSupportedOptions, [MarshalAs(UnmanagedType.U4)] ref int pdwEnabledOptions);

        [PreserveSig()]
        int SetInterfaceSafetyOptions(ref Guid riid, [MarshalAs(UnmanagedType.U4)] int dwOptionSetMask, [MarshalAs(UnmanagedType.U4)] int dwEnabledOptions);
    }
[Guid("13017436-a999-4824-84ce-5edd02713cf3"), ProgId("ADOnlineWebIEActivex"), ComVisible(true)]
    public partial class UstcOriWebLab : UserControl, IObjectSafety
    {
        public UstcOriWebLab()
        {
            InitializeComponent();
        }

        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;

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

            string strGUID = riid.ToString("B");
            pdwSupportedOptions = INTERFACESAFE_FOR_UNTRUSTED_CALLER | 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;
        }

        public int 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;
        }
    }

[Rock870210]

再顶一下，没人帮顶就再顶不了了。急求助呀。。。。