Option Compare Database
Option Explicit
Global Const SW_HIDE = 0
Global Const SW_SHOWNORMAL = 1
Global Const SW_SHOWMINIMIZED = 2
Global Const SW_SHOWMAXIMIZED = 3
 
Private Declare Function apiShowWindow Lib "user32" _
Alias "ShowWindow" (ByVal hwnd As Long, _
ByVal nCmdShow As Long) As Long
 
Function fSetAccessWindow(nCmdShow As Long)
Dim loX        As Long
Dim loForm     As Form
    On Error Resume Next
    Set loForm = Screen.ActiveForm
    If Err <> 0 Then
        If nCmdShow = SW_HIDE Then
            loX = apiShowWindow(hWndAccessApp, nCmdShow)
            Err.Clear
        End If
    Else
 
            loX = apiShowWindow(hWndAccessApp, nCmdShow)
 
    End If
    fSetAccessWindow = (loX <> 0)
End Function


Formun acilisina 

Private Sub Form_Open(Cancel As Integer)
fSetAccessWindow (0)
End Sub

Pop up = yes
modal = yes