With out using Microsoft.Application.Service namespace in windows server 2003 on appbric server environment?

Question

I am using Windows AppFabric Server in my dotnet application and hosted using windows 2003 server.I am using Microsoft.Application.Service name space in my web application..if suppose i have not used appfabic server used in this situation..this Microsoft.Application.Service namespace will support?...is this namespace is interrelated?