Hi, This feature is the way to go !. We are currently experimenting with continuous integration and we recognize that its very import that the build server is "clean" : no dlls in the gac or visual studio installed, etc Otherwise the succes of the build could be tied to a particular setup. Am I making sense and does the Orcas release run the build in some kind of isolated context seperated from the machine it is being build on? Kind Regards, Tom