I'm having a really weird issue with this tool. I first installed this on my development machine which was running an instance of SQL Express at the time. It all worked as advertised. I then Installed SQL Server 2008 R2 Enterprise on my development machine as a new instance. I also changed the database to which EF was pointing. I updated all my connection information in my Solution and verified that all my tests passed using the new connection information. I then stopped the SQL Express instance, and again verified that all of my tests passed. I then went and tried to use this tool to GenerateViews, but kept getting connection errors. I then started the SQL Express instance, and now Generate Views works as before. It appears to ultimately be connecting to the correct database because I am seeing evidence of newly added entities. As a matter of fact, the SQL Express instance does not contain any database other than the System databases. I want to get rid of the SQL Express instance, but am afraid if I do so, I will no longer be able to use this tool. I have evaluated all of my config files and verified that none of them are pointed to the SQL Express instance. Is there a registery setting or something else that I need to check? I also verified that the EntityFramework.dll is version 4.3