<%@ Page Language="VB" %>
<%@ Import Namespace="System.IO" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
Dim fs As New FileStream(Server.MapPath("Data.txt"), FileMode.Append, _
FileAccess.Write, FileShare.Read, FileOptions.Asynchronous)
Dim data() As Byte = System.Text.Encoding.ASCII.GetBytes("This is an additional string")
fs.Write(data, 0, data.Length)
fs.Flush()
fs.Close()
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>Untitled Page</title>
</head>
<body>
<form id="form1" runat="server">
<div>
</div>
</form>
</body>
</html>