WCF - Cannot resolve [WebGet] symbol - what am I doing wrong?

I am working on a REST WCF project and when I implement the following code, it complains that it can't resolve the WebGet class? What am I missing? I tried importing the System.ServiceModel.Web namespace but it can't find it even though I referenced it. The "Web" in System.ServiceModel.Web does not register when I register it in a using statement on top of my code. Basically, what do I need to implement such WCF REST concepts like WebGet, WebInvoke, UriTemplate, etc? UPDATE: After some feedback and thinking about this a little bit more what I've done, it seems that the DLLs (System.ServiceModel & System.ServiceModel.Web) do not come up via the 'Add Reference' window when I go to add a project reference. When I first started the project, FYI, since these assemblies did not come up at first, I went 'searching' for them, and copied them to a temp folder so I can reference them and thus, I guess I am having the resolve issues. So, now that I am at this point, how can I get my VS to recognize/register these WCF REST DLLs? Thanks! UPDATE: I believe I am update-to-date on everything: developing on VS 2008 SP1 - I try to download the latest SPs, downloaded the REST Preview 2 Starter Kit, developing against 3.5 Framework, trying to create a WCF REST layer to ultimately be consumed by Silverlight 2 client. This is what I have: ``` using System; using System.Collections.Generic; using System.Linq; using System.Runtime.Serialization; using System.ServiceModel; using System.Text; using UtilityClasses; using Microsoft.ServiceModel.Web; using Microsoft.Http; namespace WcfRestService { [ServiceContract] public interface IRestService { [OperationContract(Name = "Add")] [WebGet(UriTemplate = "/")] // ** can't compile here ** int Add(); } } ``` Any advice will be greatly appreciated it.