http://blogs.msdn.com/crm/archive/2007/04/10/first-6-things-to-know-about-customization.aspxTaken from the Microsoft.com Using CRM site : You have to customize, or supervise customization of, Microsoft Dynamics CRM 3.0 and you do not have time to attend training or read a long book. You have opened Microsoft Dynamics CRM and are familiar withen-USCommunityServer 2.1 SP1 (Build: 61025.2)