'Add a module into the project and put these codes in the module.
Declare Function SetWindowPos Lib "user32" (ByVal hwnd As Long, ByVal hWndInsertAfter As Long, ByVal x As Long, ByVal y As Long, ByVal cx As Long, ByVal cy As Long, ByVal wFlags As Long) As Long
Public Const HWND_BOTTOM = 1
Public Const HWND_NOTOPMOST = -2
Public Const HWND_TOP = 0
Public Const HWND_TOPMOST = -1
Public Const SWP_NOMOVE = &H2
Public Const SWP_NOSIZE = &H1

'Add 1 label,1 combo box , 1 button on the form . And put the
'codes below in the form.


Private Sub Command1_Click()
Select Case Combo1.ListIndex
Case 0
t& = SetWindowPos(Me.hwnd, HWND_BOTTOM, 0, 0, 0, 0, SWP_NOMOVE Or SWP_NOSIZE)
Case 1
t& = SetWindowPos(Me.hwnd, HWND_TOP, 0, 0, 0, 0, SWP_NOMOVE Or SWP_NOSIZE)
Case 2
t& = SetWindowPos(Me.hwnd, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOMOVE Or SWP_NOSIZE)
Case 3
t& = SetWindowPos(Me.hwnd, HWND_NOTOPMOST, 0, 0, 0, 0, SWP_NOMOVE Or SWP_NOSIZE)
End Select
End Sub

Private Sub Form_Load()
Label1.Caption = "Set The Window to:"
With Combo1
.AddItem "Bottom", 0
.AddItem "Top ", 1
.AddItem "Top Most", 2
.AddItem "Not Top Most", 3
.ListIndex = 0
End With
Command1.Caption = "Run"
End Sub