Anyone have an suggestions on how to find a reference to a module or web part on a site. I am trying to upgrade to 7.0 and I am getting an error because of a web part that we are not using anymore that is referencing the old classes from a previous version. I have removed the admin module and deleted the web part, but I am still getting the error. I have cleared cache, restarted the app and restarted IIS to make sure that I am not picking up something from cache. The only thing that I can figure is going on is that there is still a reference to the module or web part somewhere.