一个含有BHO的ToolBand,试图替换IE的UIHandler提供script扩展来工作；失败，那位高人来见教则个！(300分)

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多方测试只有全系统启动的第一个IE能工作。仔细研究发现是SetSite只有第一次IE启动带来的pUnkSite不是Nil。这个问题怎么解决？

能够理解，这个BAND启动1次就挂在后面，不需要反复创建了；但是对于多次启动的IE,需要
不断将UIHandler指代到新的IWebbrowser2;才能在所有窗口都能使用window.external的扩展。

那位高人来解决下？
修改自Borland的源码如下：
代码: 
Unit unitDemoDeskBand;

 Interface

 Uses
 
  Windows, Messages, Classes, ActiveX, ComServ, ComObj, ShlObj, SHDocVw_TLB, IEConst, IEDocHostUIHandler,
  Graphics, formVisibleBand, SysUtils, Dialogs, Variants, Forms, MSHTML_TLB;

 Const
 
  REGKEY_DESK_BAND = '{00021492-0000-0000-C000-000000000046}';
  CLSID_DEMO_DESK_BAND: TGUID = '{979FFB24-20EC-4479-909E-929A48BF9023}';
  EXPLORER_MENU_CAPTION = 'Kirikawa eBand';
  BAR_DATA: Array [0..15] Of Byte = ($24, $fb, $9f, $97, $ec, $20, $79, $44, $90, $9e, $92, $9a, $48, $bf, $90, $23);

  BAND_TITLE = 'Kirikawa News';
  MENU_TITLE_ABOUT = 'About...';
  DEFAULT_WEB: String = 'http://www.kirikawa.com';

 Type
 
  TDemoDeskBandFactory = class(TComObjectFactory)
  Private
  Protected
  Public
    Procedure UpdateRegistry(Register: Boolean);
override;
  end;


  TDemoDeskBand = class(TComObject, IDeskBand, IPersist, IPersistStream,
      IPersistStreamInit, IObjectWithSite, IContextMenu, IInputObject, IDispatch)
  Private
    FHasFocus: Boolean;
    FBandID: DWORD;
    FParentWnd: HWND;
    FSite: IInputObjectSite;
    FMenuItemCount: Integer;
    FCommandTarget: IOleCommandTarget;
    FIE: IWebbrowser2;
    FBandForm: TfrmVisibleBand;
    FSavedWndProc: TWndMethod;
    Cookie: Integer;
   do
cHostUIHandler: TDocHostUIHandler;
    procedure HideBandForm;
  Protected
    property MenuItemCount: Integer read FMenuItemCount;
    property HasFocus: Boolean read FHasFocus;
    property BandID: DWORD read FBandID;
    property SavedWndProc: TWndMethod read FSavedWndProc;
    property ParentWnd: HWND read FParentWnd;
    property Site: IInputObjectSite read FSite;
    property CommandTarget: IOleCommandTarget read FCommandTarget;
    property BandForm: TfrmVisibleBand read FBandForm;
    property IE: IWebbrowser2 read FIE;
  Protected
    procedure FocusChange(bHasFocus: Boolean);
    procedure UpdateBandInfo;
    procedure BandWndProc(var Message: TMessage);
  Public
    Function GetTypeInfoCount(Out Count: integer): HResult;
Stdcall;
    Function GetTypeInfo(Index, LocaleID: integer;
Out TypeInfo): HResult;
Stdcall;
    Function GetIDsOfNames(const iid: TGUID;
names: pointer;
namecount, localeid: integer;
dispids: pointer): hresult;
stdcall;
    Function Invoke(DispID: Integer;
Const iid: tguid;
localeid: integer;
flags: word;
var params;
varresult, excepinfo, argerr: pointer): hresult;
stdcall;
    Destructor Destroy;
override;
    Procedure Initialize;
override;
    Function GetBandInfo(dwBandID, dwViewMode: DWORD;
var pdbi: TDeskBandInfo): HResult;
stdcall;
    Function ShowDW(fShow: BOOL): HResult;
stdcall;
    Function CloseDW(dwReserved: DWORD): HResult;
stdcall;
    Function ResizeBorderDW(var prcBorder: TRect;
punkToolbarSite: IUnknown;
fReserved: BOOL): HResult;
stdcall;
    Function GetWindow(Out wnd: HWnd): HResult;
stdcall;
    Function ContextSensitiveHelp(fEnterMode: BOOL): HResult;
stdcall;
    Function GetClassID(out classID: TCLSID): HResult;
stdcall;
    Function IsDirty: HResult;
stdcall;
    Function Load(const stm: IStream): HResult;
stdcall;
    Function Save(const stm: IStream;
fClearDirty: BOOL): HResult;
stdcall;
    Function GetSizeMax(out cbSize: Largeint): HResult;
stdcall;
    Function InitNew: HResult;
stdcall;
    Function SetSite(const pUnkSite: IUnknown): HResult;
stdcall;
    Function GetSite(const riid: TIID;
out site: IUnknown): HResult;
stdcall;
    Function QueryContextMenu(Menu: HMENU;
indexMenu, idCmdFirst, idCmdLast, uFlags: UINT): HResult;
stdcall;
    Function InvokeCommand(var lpici: TCMInvokeCommandInfo): HResult;
stdcall;
    Function GetCommandString(idCmd, uType: UINT;
pwReserved: PUINT;
pszName: LPSTR;
cchMax: UINT): HResult;
stdcall;
    Function UIActivateIO(fActivate: BOOL;
var lpMsg: TMsg): HResult;
stdcall;
    Function HasFocusIO: HResult;
stdcall;
    Function TranslateAcceleratorIO(var lpMsg: TMsg): HResult;
stdcall;
  end;


Implementation

 Uses
  Registry;

Procedure SleepX(r: Cardinal = 3000);
 Var
  d: Cardinal;
 begin

  d := GetTickCount;
  Repeat
   Application.ProcessMessages;
   Sleep(100);
  Until GetTickCount - d > r;
 end;


Procedure ShowMyBar;
 Var
  IE: OleVariant;
  d: Cardinal;
 begin

  Try
   IE := CreateOleObject('internetexplorer.application');
   IE.Visible := 1;
   SleepX;
   IE.ShowBrowserBar(GUIDToString(CLSID_DEMO_DESK_BAND), True, 0);
   IE.Navigate(DEFAULT_WEB);
  Except
   On E: Exceptiondo

    MessageBox(0, pChar(e.Message), EXPLORER_MENU_CAPTION, MB_OK Or MB_ICONWARNING);
  end;

  IE := UnAssigned;
 end;



{ TDemoDeskBandFactory }

Procedure TDemoDeskBandFactory.UpdateRegistry(Register: Boolean);
 Var
  GUID: String;
  c: Array [0..15] Of Byte;
  d: Cardinal;
 begin

  Inherited UpdateRegistry(Register);
  GUID := GUIDToString(CLSID_DEMO_DESK_BAND);
  With TRegistry.Createdo

  Try
   If Register then

    begin

     RootKey := HKEY_CLASSES_ROOT;
     If OpenKey('CLSID/' + GUID, True) then

      Try
       WriteString('', EXPLORER_MENU_CAPTION);
      Finally
       CloseKey;
      end;

     If OpenKey('CLSID/' + GUID + '/InProcServer32', True) then

      Try
       WriteString('ThreadingModel', 'Apartment');
      Finally
       CloseKey;
      end;

     If OpenKey('CLSID/' + GUID + '/Implemented Categories/' + REGKEY_DESK_BAND, True) then
 CloseKey;

     RootKey := HKEY_LOCAL_MACHINE;
     If OpenKey('SOFTWARE/Microsoft/Internet Explorer/Toolbar', True) then

      Try
       WriteString(GUID, EXPLORER_MENU_CAPTION);
      Finally
       CloseKey;
      end;


     RootKey := HKEY_CURRENT_USER;
     If OpenKey('SOFTWARE/Microsoft/Internet Explorer/Toolbar/WebBrowser', True) then

      Try
       Move(BAR_DATA[0], c[0], 16);
       WriteBinaryData(GUID, c[0], 16);
      Finally
       CloseKey;
      end;


     SleepX;
     ShowMyBar;

    End
   else

    begin

     RootKey := HKEY_CLASSES_ROOT;
     DeleteKey('Component Categories/' + REGKEY_DESK_BAND + '/Enum');
     DeleteKey('CLSID/' + GUID + '/Implemented Categories/' + REGKEY_DESK_BAND);
     DeleteKey('CLSID/' + GUID + '/InProcServer32');
     DeleteKey('CLSID/' + GUID);
     CloseKey;

     RootKey := HKEY_LOCAL_MACHINE;
     If OpenKey('Software/Microsoft/Internet Explorer/Toolbar', False) then

      Try
       DeleteValue(GUID);
      Finally
       CloseKey;
      end;


     RootKey := HKEY_CURRENT_USER;
     If OpenKey('Software/Microsoft/Internet Explorer/Toolbar/WebBrowser', False) then

      Try
       DeleteValue(GUID);
      Finally
       CloseKey;
      end;

    end;

  Finally
   Free;
  end;

 end;


{ TDemoDeskBand }

Procedure TDemoDeskBand.BandWndProc(var Message: TMessage);
 begin

  If Message.Msg = WM_PARENTNOTIFY then

   begin

    FHasFocus := True;
    FocusChange(HasFocus);
   end;

  SavedWndProc(Message);
 end;


Function TDemoDeskBand.CloseDW(dwReserved: DWORD): HResult;
 begin

  HideBandForm;
  Result := S_OK;
 end;


Function TDemoDeskBand.ContextSensitiveHelp(fEnterMode: BOOL): HResult;
 begin

  Result := E_NOTIMPL;
 end;


Destructor TDemoDeskBand.Destroy;
 begin

  Try
   FIE := Nil;
  Except
  end;

  If BandForm <> Nil then

   Try
    FBandForm.Free;
    FBandForm := Nil;
   Except
   end;

  Try
   FSite := Nil;
  Except
  end;

  Try
   FCommandTarget := Nil;
  Except
  end;

  Inherited Destroy;
 end;


Procedure TDemoDeskBand.FocusChange(bHasFocus: Boolean);
 begin

  If Site <> Nil then
 Site.OnFocusChangeIS(Self, bHasFocus);
 end;


Procedure TDemoDeskBand.HideBandForm;
 begin

  BandForm.Hide;
 end;


Function TDemoDeskBand.GetBandInfo(dwBandID, dwViewMode: DWORD;
var pdbi: TDeskBandInfo): HResult;
 begin

  FBandId := dwBandID;

  if pdbi.dwMask or DBIM_MINSIZE <> 0 then

  begin

    pdbi.ptMinSize.x := 80;
    pdbi.ptMinSize.y := 22;
  end;


  if pdbi.dwMask or DBIM_MAXSIZE <> 0 then

  begin

    pdbi.ptMaxSize.x := -1;
    pdbi.ptMaxSize.y := 22;
  end;


  if pdbi.dwMask or DBIM_INTEGRAL <> 0 then

  begin

    pdbi.ptIntegral.x := 25;
    pdbi.ptIntegral.y := 22;
  end;



  if pdbi.dwMask or DBIM_ACTUAL <> 0 then

  begin

    pdbi.ptActual.x := 390;
    pdbi.ptActual.y := 22;
  end;


  if pdbi.dwMask or DBIM_MODEFLAGS <> 0 then

  begin

    pdbi.dwModeFlags := DBIMF_NORMAL or DBIMF_VARIABLEHEIGHT;
    // pdbi.dwModeFlags := DBIMF_NORMAL or DBIMF_VARIABLEHEIGHT or DBIMF_BKCOLOR;
  end;


  if pdbi.dwMask or DBIM_BKCOLOR <> 0 then

  begin

    pdbi.crBkgnd := clGreen;
  end;


  if Pdbi.dwMask and DBIM_TITLE <> 0 then

  begin

    FillChar(pdbi.wszTitle, Length(pdbi.wszTitle) * SizeOf(pdbi.wszTitle[0]), #0);
    FillChar(pdbi.wszTitle, SizeOf(BAND_TITLE) + 1, ' ');
    StringToWideChar(BAND_TITLE, @pdbi.wszTitle, Length(BAND_TITLE) + 1);
  end;


  Result := NOERROR;
end;


Function TDemoDeskBand.GetClassID(out classID: TCLSID): HResult;
 begin

  classID := CLSID_DEMO_DESK_BAND;
  Result := S_OK;
 end;


Function TDemoDeskBand.GetCommandString(idCmd, uType: UINT;
pwReserved: PUINT;
pszName: LPSTR;
cchMax: UINT): HResult;
 begin

  Result := NOERROR;
 end;


Function TDemoDeskBand.GetSite(const riid: TIID;
out site: IInterface): HResult;
 begin

  If Site <> Nil then

   Result := Site.QueryInterface(riid, site)
  else

   Result := E_FAIL;
 end;


Function TDemoDeskBand.GetSizeMax(out cbSize: Largeint): HResult;
 begin

  cbSize := 256;
  Result := S_OK;
 end;


Function TDemoDeskBand.GetWindow(Out wnd: HWnd): HResult;
 begin

  If BandForm = Nil then

   begin

    FBandForm := TfrmVisibleBand.CreateParented(ParentWnd);
    FBandForm.IE := IE;
   end;

  Wnd := BandForm.Handle;
  FSavedWndProc := BandForm.WindowProc;
  BandForm.WindowProc := BandWndProc;
  Result := S_OK;
 end;


Function TDemoDeskBand.HasFocusIO: HResult;
 begin

  Result := Integer(Not HasFocus);
 end;


Procedure TDemoDeskBand.Initialize;
 begin

  Inherited Initialize;
 end;


Function TDemoDeskBand.InitNew: HResult;
 begin

  Result := S_OK;
 end;


Function TDemoDeskBand.InvokeCommand(Var lpici: TCMInvokeCommandInfo): HResult;
 begin

  If (HiWord(Integer(lpici.lpVerb)) <> 0) Or (LoWord(lpici.lpVerb) > Pred(MenuItemCount)) then

   begin

    Result := E_FAIL;
    Exit;
   end;

  Case LoWord(lpici.lpVerb) Of
    0: MessageBox(ParentWnd, 'Borland Demo Desk-Band', '躡er', 0);
  end;

  Result := NO_ERROR;
 end;


Function TDemoDeskBand.IsDirty: HResult;
 begin

  Result := S_OK;
 end;


Function TDemoDeskBand.Load(const stm: IStream): HResult;
 begin

  Result := S_OK;
 end;


Function TDemoDeskBand.QueryContextMenu(Menu: HMENU;
indexMenu, idCmdFirst, idCmdLast, uFlags: UINT): HResult;
 begin

  FMenuItemCount := 1;
  AppendMenu(Menu, MF_STRING, idCmdFirst + 0, PChar(MENU_TITLE_ABOUT));
  Result := MenuItemCount;
 end;


Function TDemoDeskBand.ResizeBorderDW(var prcBorder: TRect;
punkToolbarSite: IInterface;
fReserved: BOOL): HResult;
 begin

  Result := E_NOTIMPL;
 end;


Function TDemoDeskBand.Save(const stm: IStream;
fClearDirty: BOOL): HResult;
 begin

  Result := S_OK;
 end;


Function TDemoDeskBand.SetSite(Const pUnkSite: IInterface): HResult;
 Var
  cmdtarget: iolecommandtarget;
  sp: iserviceprovider;
  cpc: iconnectionpointcontainer;
  cp: iconnectionpoint;
  hr: HResult;
  CustDoc: ICustomDoc;
  iDoc: IHTMLDocument2;
 begin

  If Assigned(pUnkSite) then

   Try
    FSite := pUnkSite As IInputObjectSite;
    (pUnkSite As IOleWindow).GetWindow(FParentWnd);
    FCommandTarget := pUnkSite As IOleCommandTarget;
    (CommandTarget As IServiceProvider).QueryService(IWebbrowserApp, IWebbrowser2, FIE);
   do
cHostUIHandler := TDocHostUIHandler.Create;
   do
cHostUIHandler.ObjAddRef;
    hr := FIE.Document.QueryInterface(ICustomDoc, CustDoc);
    If hr = S_OK then

     begin

      CustDoc.SetUIHandler(DocHostUIHandler);
      CustDoc._AddRef;
     end;

   Except
   end;

  If Assigned(pUnkSite) then

   Try
    cmdtarget := punksite As iolecommandtarget;
    sp := cmdtarget as iserviceprovider;
    If assigned(sp) then
 sp.queryservice(iwebbrowserapp, iwebbrowser2, FIE);
    If assigned(ie) then

     Try
      FIE.queryinterface(iconnectionpointcontainer, cpc);
      cpc.findconnectionpoint(dwebbrowserevents2, cp);
      cp.advise(self, cookie);
     Except
     end;

   Except  
   end;

  Result := S_OK;
 end;


Function TDemoDeskBand.ShowDW(fShow: BOOL): HResult;
 begin

  FHasFocus := fShow;
  FocusChange(HasFocus);
  Result := S_OK;
 end;


Function TDemoDeskBand.TranslateAcceleratorIO(var lpMsg: TMsg): HResult;
 begin

  If lpMsg.WParam <> VK_TAB then

   begin

    TranslateMessage(lpMSg);
    DispatchMessage(lpMsg);
    Result := S_OK;
   End
  else

   Result := S_FALSE;
 end;


Function TDemoDeskBand.UIActivateIO(fActivate: BOOL;
var lpMsg: TMsg): HResult;
 begin

  Try
   FHasFocus := fActivate;
   FocusChange(HasFocus);
   If HasFocus then

    If BandForm <> Nil then

     BandForm.SetFocus;
   Result := S_OK;
  Except
  end;


 end;


Procedure TDemoDeskBand.UpdateBandInfo;
 Var
  vain, vaOut: OleVariant;
  PtrGuid: PGUID;
 begin

  Try
   vaIn := Variant(BandID);
   New(PtrGUID);
   PtrGUID^ := IDESKBAND;
   CommandTarget.Exec(PtrGUID, DBID_BANDINFOCHANGED, OLECMDEXECOPT_DODEFAULT, vaIn, vaOut);
   Dispose(PtrGUID);
  Except
  end;


 end;


{ BHO Method }

Proceduredo
StatusTextChange(Const Text: Widestring);
 begin

 end;


Proceduredo
ProgressChange(progress: integer;
progressmax: integer);
 begin

 end;


Proceduredo
CommandStateChange(command: integer;
enable: wordbool);
 begin

 end;


Proceduredo
Downloadbegin
;
 begin

 end;


Proceduredo
DownloadComplete;
 begin

 end;


Proceduredo
TitleChange(Const Text: WideString);
 begin

 end;


Proceduredo
PropertyChange(Const szProperty: WideString);
 begin

 end;


Proceduredo
BeforeNavigate2(const pdisp: idispatch;
var url: olevariant;
var flags: olevariant;
var targetframename: olevariant;
var postdata: olevariant;
var headers: olevariant;
var cancel: wordbool);
 begin

  {If url<> 'http://www.applevb.com/' then

   begin

    showmessage('你不可以浏览其它站点');
    cancel:=true;
    url:='http://www.applevb.com';
    (pdisp as iwebbrowser2).navigate2(url,flags,targetframename,postdata,headers);
   end;
}
 end;


Proceduredo
NewWindow2(var ppdisp: idispatch;
var cancel: wordbool);
 begin

 end;


Proceduredo
NavigateComplete2(const pdisp: idispatch;
var url: olevariant);
 //Var
  //iDoc1: IHTMLDocument2;
  //z: IHTMLElement;
 begin

  //ShowMessage(URL);
  //(pdisp as iwebbrowser2).Document.QueryInterface(IHTMLDocument2, iDoc1);
  //iDoc1.all.item(0, 0).QueryInterface(IHTMLElement, z);
  //ShowMessage(z.innerHTML);
 end;


Proceduredo
DocumentComplete(const pdisp: idispatch;
var url: olevariant);
 //Var
  //iDoc1: IHTMLDocument2;
  //z: IHTMLElement;
 begin

  //ShowMessage(URL);
  //(pdisp as iwebbrowser2).Document.QueryInterface(IHTMLDocument2, iDoc1);
  // iDoc1.all.item(0, 0).QueryInterface(IHTMLElement, z);
  //ShowMessage(z.outerHTML);
 end;


Proceduredo
OnQuit;
 begin

 end;


Proceduredo
OnVisible(visible: wordbool);
 begin

 end;


Proceduredo
OnToolbar(toolbar: wordbool);
 begin

 end;


Proceduredo
OnMenuBar(menubar: wordbool);
 begin

 end;


Proceduredo
OnStatusBar(statusbar: wordbool);
 begin


 end;


Proceduredo
OnFullScreen(fullscreen: wordbool);
 begin

 end;


Proceduredo
OnTheaterMode(theatermode: wordbool);
 begin

 end;


Procedure BuildPositionalDispIDs(pdispids: pdispidlist;
const dps: tdispparams);
 Var
  i: integer;
 begin

  Assert(pdispids <>  nil);
  For i := 0 to dps.cargs - 1do
 pdispids^[i] := dps.cargs - 1 - i;
  If dps.cnamedargs <= 0 then
 exit;
  For i := 0 to dps.cnamedargs - 1do
 pdispids^[dps.rgdispidnamedargs^[i]] := i;
 end;


Function TDemoDeskBand.getidsofnames(const iid: tguid;
names: pointer;
 namecount, localeid: integer;
dispids: pointer): hresult;
 begin

  Result := e_notimpl;
 end;


Function TDemoDeskBand.gettypeinfo(index, localeid: integer;
Out typeinfo): hresult;
 begin

  Result := e_notimpl;
  pointer(typeinfo) := nil;
 end;


Function TDemoDeskBand.gettypeinfocount(Out count: integer): hresult;
 begin

  Result := e_notimpl;
  count := 0;
 end;


Function TDemoDeskBand.invoke(dispid: integer;
const iid: tguid;
localeid: integer;
flags: word;
var params;
varresult, excepinfo, argerr: pointer): hresult;
 Type
  polevariant = ^olevariant;
 Var
  dps: tdispparams Absolute params;
  bhasparams: boolean;
  pdispids: pdispidlist;
  idispidssize: integer;
 begin

  result := disp_e_membernotfound;
  pdispids := nil;
  idispidssize := 0;
  bhasparams := (dps.cargs >  0);
  if (bhasparams) then

   begin

    idispidssize := dps.cargs * sizeof(tdispid);
    getmem(pdispids, idispidssize);
   end;

  try
   if (bhasparams) then
 buildpositionaldispids(pdispids, dps);
    case dispid of
     102:
       begin

        do
statustextchange(dps.rgvarg^[pdispids^[0]].bstrval);
         result := s_ok;
       end;

     108:
       begin

        do
progresschange(dps.rgvarg^[pdispids^[0]].lval, dps.rgvarg^[pdispids^[1]].lval);
         result := s_ok;
       end;

     105:
       begin

        do
commandstatechange(dps.rgvarg^[pdispids^[0]].lval, dps.rgvarg^[pdispids^[1]].vbool);
         result := s_ok;
       end;

     106:
       begin

        do
downloadbegin
();
         result := s_ok;
       end;

     104:
       begin

        do
downloadcomplete();
         result := s_ok;
       end;

     113:
       begin

        do
titlechange(dps.rgvarg^[pdispids^[0]].bstrval);
         result := s_ok;
       end;

     112:
       begin

        do
propertychange(dps.rgvarg^[pdispids^[0]].bstrval);
         result := s_ok;
       end;

     250:
       begin

        do
beforenavigate2(idispatch(dps.rgvarg^[pdispids^[0]].dispval),
         polevariant(dps.rgvarg^[pdispids^[1]].pvarval)^, polevariant(dps.rgvarg^[pdispids^[2]].pvarval)^,
         polevariant(dps.rgvarg^[pdispids^[3]].pvarval)^,
         polevariant(dps.rgvarg^[pdispids^[4]].pvarval)^,
         polevariant(dps.rgvarg^[pdispids^[5]].pvarval)^,
         dps.rgvarg^[pdispids^[6]].pbool^);
         result := s_ok;
       end;

     251:
       begin

        do
newwindow2(idispatch(dps.rgvarg^[pdispids^[0]].pdispval^), dps.rgvarg^[pdispids^[1]].pbool^);
         result := s_ok;
       end;

     252:
       begin

        do
navigatecomplete2(  idispatch(dps.rgvarg^[pdispids^[0]].dispval), polevariant(dps.rgvarg^[pdispids^[1]].pvarval)^);
         result := s_ok;
       end;

     259:
       begin

        do
documentcomplete(idispatch(dps.rgvarg^[pdispids^[0]].dispval), polevariant(dps.rgvarg^[pdispids^[1]].pvarval)^);
         result := s_ok;
       end;

     253:
       begin

        do
onquit();
         result := s_ok;
       end;

     254:
       begin

        do
onvisible(dps.rgvarg^[pdispids^[0]].vbool);
         result := s_ok;
       end;

     255:
       begin

        do
ontoolbar(dps.rgvarg^[pdispids^[0]].vbool);
         result := s_ok;
       end;

     256:
       begin

        do
onmenubar(dps.rgvarg^[pdispids^[0]].vbool);
         result := s_ok;
       end;

     257:
       begin

        do
onstatusbar(dps.rgvarg^[pdispids^[0]].vbool);
         result := s_ok;
       end;

     258:
       begin

        do
onfullscreen(dps.rgvarg^[pdispids^[0]].vbool);
         result := s_ok;
       end;

     260:
       begin

        do
ontheatermode(dps.rgvarg^[pdispids^[0]].vbool);
         result := s_ok;
       end;

   end;

  Finally
   If bhasparams then
 FreeMem(pdispids, idispidssize);
  end;

 end;



Initialization
  TDemoDeskBandFactory.Create(ComServer, TDemoDeskBand, CLSID_DEMO_DESK_BAND, '', BAND_TITLE, ciMultiInstance);

end.
 
初步发现问题在setSite的时候

hr := FIE.Document.QueryInterface(ICustomDoc, CustDoc);
这一句引发一个“未指定的错误”
为什么第一个IE可以成功指定，后来打开的IE全部不行呢？
 
自己搞清楚问题了，document还没有初始化，所以不行。算了，又挂一个贴
 
恭喜搞清楚。这才是最重要的。分收不回了送出吧[:D]
 
最讨厌不劳而获了，坚决不送！
 
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