HOWTO: Automate a Secured Access Database Using Visual Basic

ID: Q192919

The information in this article applies to:


There is no Automation method in the object model of Access that allows Visual Basic to open a secured Access database without getting a prompt requesting a username and password. However, it is possible to accomplish this using the Shell command. This article demonstrates how to open a secured Access database without getting a prompt.


There are two ways to secure a Microsoft Access database:

The main problem with using the Shell command to open a secured Access database is that Access does not register itself in the running object table until it has lost focus once. This means that until Access loses focus, it cannot be found with a call to GetObject and automated. The following Visual Basic code demonstrates how to launch a secured Access database and get the running instance of Access so it can be automated.

Step by Step Example

  1. Open a new Standard EXE project in Visual Basic. Form1 is created by default.

  2. Choose References from the Project menu, check "Microsoft Access 8.0 Object Library," and then click OK. For Access 2000, check "Microsoft Access 9.0 Object Library."

  3. Add a CommandButton to Form1 and put the following code into Form1's code window:

          Private Declare Sub Sleep Lib "Kernel32" (ByVal dwMS As Long)
          Private Sub Command1_Click()
          Dim accObj As Access.application, Msg As String
          Dim application As String, dbs As String, workgroup As String
          Dim user As String, password As String, cTries As Integer
          Dim x
          ' This is the default location of Access
          application = "C:\Program Files\Microsoft Office\Office\MSACCESS.EXE"
          ' Use the path and name of a secured MDB on your system
          dbs = "C:\TestDatabase.mdb"
          ' This is the default workgroup
          workgroup = "C:\Windows\System\System.mdw "
          user = "Admin"           ' Use a valid username
          password = "Mypassword"  ' and correct password
          x = Shell(application & " " & dbs & " /nostartup /user " & user & _
             " /pwd " & password & " /wrkgrp " & workgroup, vbMinimizedFocus)
          On Error GoTo WAITFORACCESS
          Set accObj = GetObject(, "Access.Application")
          ' Turn off error handling
          On Error GoTo 0
          ' You can now use the accObj reference to automate Access
          Msg = "Access is now open. You can click on Microsoft Access "
          Msg = Msg & "in the Taskbar to see that your database is open."
          Msg = Msg & vbCrLf & vbCrLf & "When ready, click OK to close."
          MsgBox Msg, , "Success!"
          Set accObj = Nothing
          MsgBox "All Done!", vbMsgBoxSetForeground
          Exit Sub
          WAITFORACCESS:               ' <--- This line must be left-aligned.
          ' Access isn't registered in the Running Object Table yet, so call
          ' SetFocus to take focus from Access, wait half a second, and try
          ' again. If you try five times and fail, then something has probably
          ' gone wrong, so warn the user and exit.
          If cTries < 5 Then
             cTries = cTries + 1
             Sleep 500 ' wait 1/2 seconds
             MsgBox "Access is taking too long. Process ended.", _
          End If
          End Sub 
  5. Run the project and click on Command1. Your secured MDB will open without prompting you, and a message box will pause the code so that you can verify that your database is actually open. You can then click OK to dismiss the message box and close Access.


For additional information, please see the following articles in the Microsoft Knowledge Base:

Q132143 ACC: Overview of How to Secure a Microsoft Access Database
Q147816 ACC: Using Microsoft Access as an Automation Server

Additional query words:

Keywords          : kbnokeyword kbAccess kbAccess97 KbVBA kbVBp kbVBp500 kbVBp600 kbGrpDSO kbOffice2000 
Version           : WINDOWS:2000,5.0,6.0,97; :
Platform          : WINDOWS 
Issue type        : kbhowto 

Last Reviewed: June 8, 1999