using System.Deployment.Application;
using System.Web;
using System.Collections.Specialized;
private NameValueCollection GetQueryStringParameters()
{
       NameValueCollection col = new NameValueCollection();
       if (ApplicationDeployment.IsNetworkDeployed)
       {
             string queryString = ApplicationDeployment.CurrentDeployment.ActivationUri.Query;
             col = HttpUtility.ParseQueryString(queryString);
       }
       return col;
}