What build of the .NET framework 2.0 is required to run the Hands On Lab ?. 
I'm using the VS 2005 August CTP, but the samples are not working and some errors are logged in the eventlog.

Exception information:
    Exception type: MissingFieldException
    Exception message: Field not found: 'System.Collections.Generic.KeyValuePair`2.Key'.
 
Request information:
    Request URL: http://localhost/AtlasWebSite1/HelloWorldService.asmx?mn=HelloWorld
    Request path: /AtlasWebSite1/HelloWorldService.asmx
    User host address: 127.0.0.1
    User: 
    Is authenticated: False
    Authentication Type: 
    Thread account name: NT AUTHORITY\SYSTEM
 
Thread information:
    Thread ID: 1
    Thread account name: NT AUTHORITY\SYSTEM
    Is impersonating: False
    Stack trace:    at Microsoft.Web.Services.WebServiceMethodData.CallMethod(Object target, IDictionary`2 parameters)
   at Microsoft.Web.Services.RestHandler.ProcessRequest(HttpContext context)
   at Microsoft.Web.Services.ScriptHandlerFactory.HandlerWrapper.ProcessRequest(HttpContext context)
   at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
   at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
 
Regards and thanks
Pablo