In the Organize Your Team To Develop Solutions section of the Microsoft Dynamics CRM 2011 SDK, there is a section that talks about merging 2 or more unmanaged solutions by importing them into a master solution. However, the SDK doesn’t exactly explain how. In this screencast, I will show you.
https://channel9.msdn.com/posts/Merging-CRM-2011-Solutions/player?w=512&h=288
Gold Coast 