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copied!<p>I've done a similar thing to you: authenticating users from a legacy ASP application to an ASP.NET site. What would help, is if you could provide a little more detail (sample code, perhaps) of the process you've setup to do this with users coming from the legacy app to the ASPX app.</p> <p>To give you a brief idea, in my implementation I've done the following:</p> <ul> <li>Create an .ASPX page</li> <li>The .ASPX page accepts HTTP POST values from a particular legacy ASP app <em>only</em>.</li> <li>When a POST request is received, I extract the username/password values, then proceed to authenticate in the normal way. If the user is successfully authenticated, we issue a FormsAuthentication cookie to the user.</li> </ul> <p>In reality, my implementation is quite a bit more complicated, using the database as a backing store (as both apps share a common data source) and a particular database field to store a random code which is sent from the classic app to the .NET side to further verify that the request received by the .NET app is valid.</p> <p><strong>EDIT:</strong></p> <p>Try manually setting your authentication cookie. Delete the line:</p> <pre><code>FormsAuthentication.SetAuthCookie(Request.QueryString["uid"], false); </code></pre> <p>Replace with:</p> <pre><code>FormsAuthenticationTicket ticket = new FormsAuthenticationTicket(1, Request.QueryString["uid"], DateTime.Now, DateTime.Now.AddHours(24), false, null) string encryptedTicket = FormsAuthentication.Encrypt(ticket); HttpCookie cookie = new HttpCookie(FormsAuthentication.FormsCookieName, encryptedTicket); HttpContext.Current.Response.Cookies.Add(cookie); </code></pre> <p>See how you get on with that?</p>

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