まあまて、>>277にnewと例外処理を加えよう

Sub C()
On Error Goto ErrHandler
  Dim objConnection As MyConnection
  Set objConnection = New MyConnection

  Call objConnection.Open
  Call objConnection.BeginTrans
  Call objConnection.CommitTrans

  Exit Sub
ErrHandler:
  ErrorLog(Err)
End Sub

よし。これでOKだ