Forgot one other thing - the most important.
I also added the following code to the Global.asax file of my website.
Sub Application_Start(ByVal sender As Object, ByVal e As EventArgs)
' Code that runs on application startup
'For izWebFileManager
' to overcome hang on rename or delete see Rename/Delete folder bug inthe the Bugs/Problems/Errors forum
' http://connect.microsoft.com/VisualStudio/feedback/Workaround.aspx?FeedbackID=240686
'Eliminacion de las Notificaciones de cambios en archivos
Dim p As System.Reflection.PropertyInfo = GetType(System.Web.HttpRuntime).GetProperty("FileChangesMonitor", _
System.Reflection.BindingFlags.NonPublic Or _
System.Reflection.BindingFlags.Public Or _
System.Reflection.BindingFlags.Static)
Dim o As Object = p.GetValue(Nothing, Nothing)
Dim f As System.Reflection.FieldInfo = o.GetType().GetField("_dirMonSubdirs", _
System.Reflection.BindingFlags.Instance Or _
System.Reflection.BindingFlags.NonPublic Or _
System.Reflection.BindingFlags.IgnoreCase)
Dim monitor As Object = f.GetValue(o)
Dim m As System.Reflection.MethodInfo = monitor.GetType().GetMethod("StopMonitoring", _
System.Reflection.BindingFlags.Instance Or _
System.Reflection.BindingFlags.NonPublic)
m.Invoke(monitor, New Object() {})
End Sub