The Microsoft CRM Connector for Microsoft Dynamics GP has three components:

  1. CRM Adaptor
  2. GP Adaptor
  3. Integration System

Now depending on the deployment configuration each of these components could be on a different server or on a common server (The Adaptor components need to be installed on the respective applications with which they interface – the CRM Adaptor on the CRM server and the GP Adaptor on the GP server). The Integration System uses BizTalk Server 2004 and hence has a dependency on SQL Server 2000. None of the other two components have this dependency.
 
So for instance if you have a three server configuration where each of CRM Server, GP Server and Integration Server are different, you could use SQL Server 2005 on the CRM and GP Servers but you would have to use SQL Server 2000 on the Integration server. If you have a one server configuration you would need to have SQL Server 2000; similarly on a two server configuration you would need to have SQL Server 2000 on the server on which you install the Integration System.