In LLBLGen v2, I have created two seperate projects. One of them talks to a SQL 2005 server and the other one talks to a SQL2000 server. When I add both of the projects to a single web solution they both get the sqlserverdqecompatibility from the web config which means the SQLServer 2000 project can throw exceptions. In the code behind I am manually changing the compatibility level for the SQL2000 project to get around this. Is there a way to set the app setting key name for each project?