Asp HTTP 500 Error

Hello there,

I have created a login page for users. The login page contain <FORM action="verifyuser.asp" method="post">. The verifyuser page verify that the user exist in the database. All the pages, home, login, memberspage, updatemember, seems to be working properly except for the verifyuser page. This is the code for the page:




<%
Dim objConn, oRSu
Set objConn = Server.CreateObject("ADODB.Connection")
objConn.Open "Provider=SQLOLEDB.1;Persist Security Info=False;"& _
"User ID=sa;Password=test12345; Initial Catalog=members;Data Source= Kai-PC;"

dim varUsername, varPassword
varUsername = Request.Form("Username")
varPassword = Request.Form("Password")

set oRSU=server.CreateObject("adodb.recordset")
SQL = "Select * from Users where Username = '" & varUsername & "' AND
Password = '"& varPassword &"'"
oRSu.open SQL, objConn
If oRSu.EOF Then
response.redirect "Login.asp"
end if
Session("Username") = oRSu("Username")
Session("password") = oRSu("password")

Response.redirect "memberspage.asp"
oRSu.Close
set oRSu=nothing
%>

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Whenever I try to login a HTTP 500 Internal Server Error appears... I have no idea whether that caused by the codes or because I'm using Vista? Thanks