Desiring to shorten my code and prevent having to create multiple OnClick events for several similar CommandButtons, I decided to try and implement a custom class. I created a new Class Module:

clsButtonGroup
Code:
Option Compare Database
Option Explicit

Public WithEvents ButtonGroup As CommandButton

Private Sub ButtonGroup_Click()
   MsgBox "Button " & ButtonGroup.Name & " was clicked!"
End Sub
...and in the module of my main form where the buttons reside I have:
Code:
Option Compare Database
Option Explicit

Dim Buttons() As New clsButtonGroup

Private Sub Form_Load()
'CREATE BUTTON GROUP
   Dim btnCount As Integer
   Dim ctl As Control
   btnCount = 0
   For Each ctl In Me.Controls
      If TypeName(ctl) = "CommandButton" Then
         If ctl.Tag = "filter" Then
            btnCount = btnCount + 1
            ReDim Preserve Buttons(1 To btnCount)
            Set Buttons(btnCount).ButtonGroup = ctl
         End If
      End If
   Next ctl
End Sub
When I launch the form in Form View everything seems to work fine. When I switch to Design View however, I get an EMET error (EMET detected DEP mitigation & Microsoft Access has stopped working) and Access crashes to desktop. When I comment out all the code in the Form_Load event section and repeat the process, Access is fine (no crash). I'm totally new to custom classes so I'm hoping this is just a coding mistake. Any help is much appreciated. Thanks!