salvea tutti
non appena cerco di uplodare un file nel server da asp.net mi da questo errore

codice:
Server Error in '/' Application.
Access to the path "D:\home\w3km02s36\prenotazioni\logo.jpg" is denied.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.UnauthorizedAccessException: Access to the path "D:\home\w3km02s36\prenotazioni\logo.jpg" is denied.

ASP.NET is not authorized to access the requested resource. Consider granting access rights to the resource to the ASP.NET request identity. ASP.NET has a base process identity (typically {MACHINE}\ASPNET on IIS 5 or Network Service on IIS 6) that is used if the application is not impersonating. If the application is impersonating via <identity impersonate="true"/>, the identity will be the anonymous user (typically IUSR_MACHINENAME) or the authenticated request user.

To grant ASP.NET write access to a file, right-click the file in Explorer, choose "Properties" and select the Security tab. Click "Add" to add the appropriate user or group. Highlight the ASP.NET account, and check the boxes for the desired access.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[UnauthorizedAccessException: Access to the path "D:\home\w3km02s36\prenotazioni\logo.jpg" is denied.]
   System.IO.__Error.WinIOError(Int32 errorCode, String str) +393
   System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, Boolean useAsync, String msgPath, Boolean bFromProxy) +888
   System.IO.FileStream..ctor(String path, FileMode mode) +52
   System.Web.HttpPostedFile.SaveAs(String filename) +48
   hotelmetropolitan.Impostazioni.CMD_ImgMail_Click(Object sender, EventArgs e)
   System.Web.UI.WebControls.Button.OnClick(EventArgs e) +108
   System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +57
   System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +18
   System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33
   System.Web.UI.Page.ProcessRequestMain() +1292


Version Information: Microsoft .NET Framework Version:1.1.4322.2300; ASP.NET Version:1.1.4322.2300
il codice he uso è questo:



codice:
    Dim PathDB As String
        Dim NOmeFIle As String = Right(Me.File1.Value, Len(Me.File1.Value) - InStrRev(Me.File1.Value, "\"))

        Try
            PathDB = Server.MapPath("../" & NOmeFIle)
            File1.PostedFile.SaveAs(PathDB)
        Catch ex As Exception
            Me.LBL_Messaggio.Text = ex.Message
            Exit Sub
        End Try
da cosa puo0 dipendere?
grazie