Having made an instance of IE as a child of ThisWorkbook via API SetParent oIE.hwnd, Application.hwnd, I CANNOT now release the child from its parent.

Using Excel 2016: In the following code:  Sub getIE_makeChild_ofXl() opens internet explorer as a child of ThisWorkbook.
As expected, when the workbook is dragged, the IE wondow moves. When the excel.App.window is clicked, the IE window remains on top of thisWorkbook

However, I could not release IE from its parent either via Sub releaseParent1() nor via Sub releaseParent2().

Can you help me to release the child window?
Thanks, Kelvin

Option Explicit

#If Win64 Then
    'source (Chip Pearson) https://www.pcreview.co.uk/threads/in-vba-make-ie-browser-object-always-in-foreground.2503326/
    Declare Function SetParent Lib "user32" (ByVal hWndChild As LongLong, ByVal hWndNewParent As Long) As LongLong

    'source: http://www.vbforums.com/showthread.php?526112-RESOLVED-Undo-SetParent
    Declare Function GetDesktopWindow Lib "user32.dll" () As LongLong
#Else
    Declare Function SetParent Lib "user32" (ByVal hWndChild As Long, ByVal hWndNewParent As Long) As Long
    Declare Function GetDesktopWindow Lib "user32.dll" () As Long
#End If

Private oIE As Object

'this places the IE window ontop of the Excel sheet window, U can drag it about to see the xl window,
'' but the VISIBLE part of the IE window is that WITHIN the margins of the xl window.
   
Sub getIE_makeChild_ofXl()
   
    Set oIE = CreateObject("InternetExplorer.application")
    oIE.Visible = True
    oIE.navigate ("http://bbc.co.uk")
    oIE.Visible = True
   
    'make child
    SetParent oIE.hwnd, Application.hwnd

End Sub

Sub releaseParent1()

'source: http://www.vbforums.com/showthread.php?526112-RESOLVED-Undo-SetParent
    SetParent oIE.hwnd, GetDesktopWindow()
End Sub

Sub releaseParent2()
    'source: http://www.xtremevbtalk.com/general/262412-desktop-hwnd.html
Dim hWndDesktop As Long
   
    hWndDesktop = GetDesktopWindow
    SetParent oIE.hwnd, hWndDesktop
End Sub