System.ComponentModel.Win32Exception (0x80004005): The system cannot find the file specified
   at MS.Win32.UnsafeNativeMethods.RegisterClassEx(WNDCLASSEX_D wc_d)
   at MS.Win32.HwndWrapper..ctor(Int32 classStyle, Int32 style, Int32 exStyle, Int32 x, Int32 y, Int32 width, Int32 height, String name, IntPtr parent, HwndWrapperHook[] hooks)
   at System.Windows.Threading.Dispatcher..ctor()
   at System.Windows.Threading.Dispatcher.get_CurrentDispatcher()
   at System.Windows.Media.Visual..ctor(ResourceType resourceType)
   at System.Windows.FrameworkElement..ctor()
   at System.Windows.Controls.Control..ctor()
   at System.Windows.Controls.ContentControl..ctor()
   at Telerik.Windows.Controls.RadChart..ctor() in c:\TB\117\WPF_Scrum\Release_WPF\Sources\Development\Controls\Charting\Chart\RadChart.cs:line 252

Telrik doesn't install on the machine. We use dll from library. What does this path ment?

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Telerik.Windows.Persistence;
using Telerik.Windows.Persistence.Storage;

namespace WpfApplication_Docking
{
    static public class PersistenceStorage
    {
        #region Public methods.
        /// <summary>
        /// Load/Save all controls that contain "telerik:PersistenceManager.StorageId="..."
        /// The file location is "$APPDATA\IsolatedStorage\..."
        /// </summary>
        /// <param name="pPersistenceAction">Load/Save</param>
        /// <param name="pErrorMessage">Error received during the persistence.</param>
        /// <returns>true if successfull otherwise false</returns>
        static public bool Persist(PersistenceAction pPersistenceAction, out string pErrorMessage)
        {
   

            pErrorMessage = string.Empty;
            PersistenceManager manager = new PersistenceManager();
            //manager.PropertyPersisting += new Telerik.Windows.Persistence.Events.PropertyPersistingEventHandler(manager_PropertyPersisting);
            IsolatedStorageProvider storage = new IsolatedStorageProvider(manager);

            try
            {
                try
                {
                    if (pPersistenceAction == PersistenceAction.Load)
                    {
                        storage.LoadFromStorage();
                    }
                    else if (pPersistenceAction == PersistenceAction.Save)
                    {
                        storage.SaveToStorage();
                    }

                    return true;
                }
                catch (Exception ex)
                {
                    pErrorMessage = ex.Message;
                    return false;
                }
            }
            finally
            {
                //manager.PropertyPersisting += new Telerik.Windows.Persistence.Events.PropertyPersistingEventHandler(manager_PropertyPersisting);
            }
        }

        /// <summary>
        /// Event triggered when the stream persistence didn't worked.
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        static void manager_PersistenceError(object sender, Telerik.Windows.Persistence.Events.PersistenceErrorEventArgs e)
        {
            mErrorMessage = e.Exception.Message;
            mResult = false;
            throw new NotImplementedException();
        }

        /// <summary>
        /// This event is used to prevent any BroderBrush to have a transparent color when we persist an object.
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        static void manager_PropertyPersisting(object sender, Telerik.Windows.Persistence.Events.PersistingPropertyEventArgs e)
        {
            //Not needed since version 2011.3.1116.35 of Telerik
            //if (e.Name == "BorderBrush")
            //    e.Cancel = true;
        }
        #endregion

        #region Enumerators.
        public enum PersistenceAction { Load, Save }
        #endregion

        #region Private declarations.
        static private string mErrorMessage;
        static private bool mResult;
        #endregion
    }
}