VBA : User defined type not defined

Jeg er komplet ny til VBA, tilgengæld skal jeg kun lave et lille projekt hvor jeg hiver noget data ud fra en sql-server og ind i et excel ark.

jeg har fundet følgende stump kode :

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OpenDatabase Method Example

This example uses the OpenDatabase method to open one Microsoft Jet database and two Microsoft Jet-connected ODBC databases.

Sub OpenDatabaseX()

    Dim wrkJet As Workspace
    Dim dbsNorthwind As Database
    Dim dbsPubs As Database
    Dim dbsPubs2 As Database
    Dim dbsLoop As Database
    Dim prpLoop As Property

    ' Create Microsoft Jet Workspace object.
    Set wrkJet = CreateWorkspace("", "admin", "", dbUseJet)

    ' Open Database object from saved Microsoft Jet database
    ' for exclusive use.
    MsgBox "Opening Northwind..."
    Set dbsNorthwind = wrkJet.OpenDatabase("Northwind.mdb", _
        True)

    ' Open read-only Database object based on information in
    ' the connect string.
    MsgBox "Opening pubs..."
    Set dbsPubs = wrkJet.OpenDatabase("Publishers", _
        dbDriverNoPrompt, True, _
        "ODBC;DATABASE=pubs;UID=sa;PWD=;DSN=Publishers")

    ' Open read-only Database object by entering only the
    ' missing information in the ODBC Driver Manager dialog
    ' box.
    MsgBox "Opening second copy of pubs..."
    Set dbsPubs2 = wrkJet.OpenDatabase("Publishers", _
        dbDriverCompleteRequired, True, _
        "ODBC;DATABASE=pubs;DSN=Publishers;")

    ' Enumerate the Databases collection.
    For Each dbsLoop In wrkJet.Databases
        Debug.Print "Database properties for " & _
            dbsLoop.Name & ":"

        On Error Resume Next
        ' Enumerate the Properties collection of each Database
        ' object.
        For Each prpLoop In dbsLoop.Properties
            If prpLoop.Name = "Connection" Then
                ' Property actually returns a Connection object.
                Debug.Print "  Connection[.Name] = " & _
                    dbsLoop.Connection.Name
            Else
                Debug.Print "  " & prpLoop.Name & " = " & _
                    prpLoop
            End If
        Next prpLoop
        On Error GoTo 0

    Next dbsLoop

    dbsNorthwind.Close
    dbsPubs.Close
    dbsPubs2.Close
    wrkJet.Close

End Sub

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første udfordring; jeg får en compile error der siger: user defined type not defined. Jeg har kunnet læse mig til at det er noget med en reference der skal sættes, men hvilken ?