Step 1: Go to: Control Panel | Administrative Tools | Services
Step 2: Locate "ASP.NET State Service".
Step 3: Set Startup type to: "Automatic".
Step 4: Click "Start", if the "ASP.NET State Service" is not started.
Step 5: Click OK.
Configuring the Microsoft .NET Framework
Deploying Applications with the Deployment Wizard
Manually Deploying an Application to a Production Server