Tim.Cartwright 


Xdt.Config.Transform will add config transforms for exe and dll project types that tranform each and every transform file when built. These files can then be used to replace the default app.config with the environment specific version app.config during the release cycle.
Xdt.Config.Transform.Web will add config transforms for web project types that tranform each and every transform file when built. These files can then be used to replace the default web.config with the environment specific webb.config version during the release cycle.