How set ADO reference in a VBA protected Excel file?

Try out this code, you may have to adapt it slightly.

Sub AddReference()
'Macro purpose: To add a reference to the project using the GUID for the
'reference library

Dim strGUID As String, theRef As Variant, i As Long

'Update the GUID you need below.
strGUID = "{00020905-0000-0000-C000-000000000046}"

'Set to continue in case of error
On Error Resume Next

'Remove any missing references
For i = ThisWorkbook.VBProject.References.Count To 1 Step -1
Set theRef = ThisWorkbook.VBProject.References.Item(i)
If theRef.isbroken = True Then
ThisWorkbook.VBProject.References.Remove theRef
End If
Next i

'Clear any errors so that error trapping for GUID additions can be evaluated
Err.Clear

'Add the reference
ThisWorkbook.VBProject.References.AddFromGuid _
GUID:=strGUID, Major:=1, Minor:=0

'If an error was encountered, inform the user
Select Case Err.Number
Case Is = 32813
'Reference already in use. No action necessary
Case Is = vbNullString
'Reference added without issue
Case Else
'An unknown error was encountered, so alert the user
MsgBox "A problem was encountered trying to" & vbNewLine _
& "add or remove a reference in this file" & vbNewLine & "Please check the " _
& "references in your VBA project!", vbCritical + vbOKOnly, "Error!"
End Select
On Error Goto 0
End Sub

Trevor

If you want a robust solution that is going to work whatever version of ADO is installed on the target machine then you should look at late binding - that is getting rid of any references in your Excel project and making some changes to your code. Here is an example of early bound (what you're currently using):


Here is the same code as late bound - you basically declare the variables as object, change any New statements to Createobject and either use the literal values (such as 3 rather than adLockOptimistic) or preferably define the constants yourself.


Hope that helps - let me know if you have any questions.

DK

Thanks DK - amazingly, I do this all the time with other objects and never thought of applying late binding to ADO objects.