drag & drop issue with "Shell.Explorer.2" object

[pedrit0]

Hi all

If I drag and drop a file from an explorer window to a "Shell.Explorer.2" object that is created within a form : it works

If I try the same drag and drop to a "Shell.Explorer.2" object that is created within a tab : it does NOT work

I tested it under Windows 7 and Windows XP as administrator : same behaviour on both systems

My problem can be understood with the following example code where you can see 2 "Shell.Explorer.2" objects. One is directly created in the form while the other one is created within a tab.

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#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>

Example()

Func Example()
    Local $oIE, $oIE2, $GUIActiveX1, $GUIActiveX2
    Local $msg

    $oIE = ObjCreate("Shell.Explorer.2")
    $oIE2 = ObjCreate("Shell.Explorer.2")

    GUICreate("Embedded Web control Test", 570, 470, 0, 0, BitOR($WS_OVERLAPPEDWINDOW, $WS_CLIPSIBLINGS, $WS_CLIPCHILDREN))

    $TabSet = GUICtrlCreateTab(10, 50, 550, 220, 0)
    $TabSheet1 = GUICtrlCreateTabItem("test")

    $GUIActiveX1 = GUICtrlCreateObj ($oIE, 20, 100, 525, 150)
    $GUIActiveX2 = GUICtrlCreateObj ($oIE2, 20, 280, 525, 150)

    GUISetState()

    $oIE.navigate("c:\")
    $oIE2.navigate("c:\windows")

    While 1

        $msg = GUIGetMsg()

        Select

            Case $msg = $GUI_EVENT_CLOSE
                ExitLoop

        EndSelect

    WEnd

    GUIDelete()

EndFunc

I am almost sure this is a not a bug : I think I am missing something (required style or extended style or whatever), but cannot find what.

Can you help me to open my eyes :-)

thx a lot.

Pedrit0