simple upload.aspx

<% @Page Language="C#" Debug="true" %>
<%
    string extName = "";
    foreach (string filename in Request.Files)
    {
        //Response.Write(Request.Files + "," + Request.Files.Count + "," + Request.Files.Get(filename) + "\n");
        //Response.End();
        HttpPostedFile file = Request.Files.Get(filename);
        string fileName = System.IO.Path.GetFileName(file.FileName);
        extName = fileName.Substring(fileName.LastIndexOf('.') + 1);
        // IIS_IUSERS MUST have the write permission of the temp folder.
        // Under configuration in web.config
        //
        //    
        //    
        //
        string path = System.IO.Path.Combine(Server.MapPath("~/temp/"), "temp." + extName);
        file.SaveAs(path);
        break;
    }
    Response.Write("./temp/temp." + extName);
%>