Recently I started using VS Professional edition, which doesn’t have an inbuilt Source code analysis option. And I have to run the Source code analysis after each build. And today I found a solution for the same using environmental macros.
Open the Macros IDE, from Tools > Macros > Macros IDE. This will launch Visual Studio macro editor.
Double click on the MyMacros project, from the Project explorer.
Open the EnvironmentEvents class. This class contains various system generated code, add the following code in below the region.

Private Sub BuildEvents_OnBuildDone(ByVal Scope As EnvDTE.vsBuildScope, _
                                        ByVal Action As EnvDTE.vsBuildAction) _
                                        Handles BuildEvents.OnBuildDone
        If Action = vsBuildAction.vsBuildActionClean Then
            Exit Sub
        End If
        If MsgBox("Run Source Code Analysis?", _
                  MsgBoxStyle.YesNo + MsgBoxStyle.Question, "FxCop - Confirm") = _
                  MsgBoxResult.Yes Then
            DTE.ExecuteCommand("Tools.ExternalCommand6")
        End If
    End Sub

This method will be executed once the Build is finished. As I integrated FxCop with my Visual Studio as my external tools, it will execute the External Command 6. It will display a confirmation message, after completing the Build, and if yes press, it will execute the FxCop.

Happy Coding