When you install eConnect on a computer, the install creates a Windows Service named eConnect for Microsoft Dynamics GP 2010 integration Service. The eConnect Integration Service is a Windows Communication Foundation (WCF) service that replaces the eConnect COM+ object that was used in previous versions of eConnect.
The eConnect Integration Service supports the operations of the eConnect .NET assemblies, the BizTalk adapter, and MSMQ interfaces In addition, you can use the service directly from an application that adds a service reference to the eConnect Integration Service..