Could not load type 'System.Data.Services.Providers.IDataServiceUpdateProvider'


I was trying to access SharePoint 2010 REST services in a Windows 7 machine, and face the below error message.


After some binging was able to get a Service update, which solved the issue.

ADO.NET Data Services Update for .NET Framework 3.5 SP1 for Windows 7 and Windows Server 2008 R2

Now, I’m able to proceed with the REST.