[CODE]
Imports Microsoft.VisualBasic
Imports System
Imports System.IO
Imports System.Web
Imports System.Web.UI


Public Class url_re
    Implements IHttpHandler

    Public ReadOnly Property IsReusable() As Boolean Implements System.Web.IHttpHandler.IsReusable
        Get
            Return True
        End Get
    End Property

    Public Sub ProcessRequest(ByVal context As HttpContext) Implements System.Web.IHttpHandler.ProcessRequest
        Dim url As String = context.Request.Path.ToLower() ' ignora il dominio e la querystring

        ' il pezzo iniziale dell'url
        Dim baseUrl As String = "content/"
        If url.IndexOf(baseUrl) = -1 Then
            Return
        End If

        url = url.Substring(url.IndexOf(baseUrl) + baseUrl.Length)
        If url.IndexOf("/") = -1 Then
            Return
        End If

        ' prendo solo i pezzi che mi interessano
        url = url.Substring(0, url.LastIndexOf("/"))

        ' prendo le informazioni dall'url
        Dim categoryID As String = Nothing
        Dim ID As String = Nothing

        ID = url.Split("/"c)(0)
        categoryID = url.Split("/"c)(1)

        ' eseguo la richiesta alla pagina vera
        context.Server.Execute(String.Concat("~/prodotti.aspx?ID_cat=", ID, "&ID_prod=", categoryID), False)

    End Sub
End Class

[/CODE]