Why have my Visual Studio 2008 SP1 macros stropped working

Question

I just cannot for the life of me figure out why my build event macro is no longer firing. Any ideas?

Option Strict Off
Option Explicit Off
Imports System
Imports EnvDTE
Imports EnvDTE80
Imports EnvDTE90
Imports System.Diagnostics

Public Module EnvironmentEvents

    Private Sub BuildEvents_OnBuildProjConfigDone(ByVal Project As String, _
                                                ByVal ProjectConfig As String, _
                                                ByVal Platform As String, _
                                                ByVal SolutionConfig As String, _
                                                ByVal Success As Boolean) _
                                    Handles BuildEvents.OnBuildProjConfigDone
        If Success = False Then
            'The build failed...cancel any further builds.
            DTE.ExecuteCommand("Build.Cancel")
        End If
    End Sub
End Module

Answer 1

Have you tried running Windows Update? Are all the macros not working or just this one?