I successfully added the Global.asax as a new item in my Visual Studio
2005 web project.  I set some session variables and then store the
user, company and session id in an access database table called "Web
User Log".  I was not successful in setting the session end time; it
just wasn't possible because my session state mode is not set to
InProc so I dismissed the idea.  Here is the code if anyone is
interested....
Thanks to everyone for your help.

   Sub Session_Start(ByVal sender As Object, ByVal e As EventArgs)
       ' Code that runs when a new session is started
       Session("IsDeveloper") = False

       'Set session variables
       If Not
IsNothing(Context.User.Identity.Name.Substring(Context.User.Identity.Name.LastIndexOf("\")
+ 1)) Then
           Session("CurUser") =
Context.User.Identity.Name.Substring(Context.User.Identity.Name.LastIndexOf("\")
+ 1)
           Dim CurDom As String = "DC=mydomain, DC=local"
           Dim LdapSvr As String = "mydomain.local"
           Dim LdapPath As String = "LDAP://" & LdapSvr & "/" &
CurDom & ""
           Dim DirEnt As DirectoryEntry = New
DirectoryEntry(LdapPath)
           Dim ds As DirectorySearcher = New
DirectorySearcher(DirEnt, "(sAMAccountName=" & Session("CurUser") &
")")
           ds.PropertiesToLoad.Add("mail")
           ds.PropertiesToLoad.Add("sn")
           ds.PropertiesToLoad.Add("givenName")
           ds.PropertiesToLoad.Add("company")
           ds.PropertiesToLoad.Add("st")
           ds.PropertiesToLoad.Add("l")
           ds.PropertiesToLoad.Add("department")

           Dim sr As SearchResult = ds.FindOne
           Session("SN") =
sr.GetDirectoryEntry().Properties("sn").Value
           Session("GivenName") =
sr.GetDirectoryEntry().Properties("givenName").Value
           Session("mail") =
sr.GetDirectoryEntry().Properties("mail").Value
           Session("Company") =
sr.GetDirectoryEntry().Properties("company").Value
           Session("St") =
sr.GetDirectoryEntry().Properties("st").Value
           Session("city") =
sr.GetDirectoryEntry().Properties("l").Value
           Session("department") =
sr.GetDirectoryEntry().Properties("department").Value
       End If

       If UCase(Session("CurUser")) = "DEVDUDE1" Or
UCase(Session("CurUser")) = "DEVDUDE2" Then
           'don't store login date/time for the web developers who
repeatedly log in and out while debugging.
           Session("IsDeveloper") = True
       Else
           If Not Session("CurUser") Is Nothing Then
               'now writing user name and login time to the WebBMQ
database Web User Log table upon new session
               Dim strConn As String = "Provider=Microsoft.Jet.OLEDB.
4.0;Data Source=\myserver\webbmq.mdb;"
               Dim conWebOrdNum As New
System.Data.OleDb.OleDbConnection(strConn)
               Dim strIns As String = "INSERT INTO [Web User Log]
([User],[Company],[Date/Time of Entry], [Session ID]) VALUES
(?,?,?,?)"
               Dim cmdIns As New
System.Data.OleDb.OleDbCommand(strIns, conWebOrdNum)
               conWebOrdNum.Open()
               If Session("CurUser") Is Nothing Then
               Else
                   cmdIns.Parameters.AddWithValue("User",
Session("CurUser").ToString)
               End If

               If Session("Company") Is Nothing Then
               Else
                   cmdIns.Parameters.AddWithValue("Company",
Session("Company").ToString)
               End If

               If Session("CurUser") Is Nothing And
Session("Company") Is Nothing Then
               Else
                   cmdIns.Parameters.AddWithValue("Date/Time of
Entry", Now.ToString)
                   cmdIns.Parameters.AddWithValue("Session ID",
Session.SessionID.ToString)
               End If
               cmdIns.ExecuteNonQuery()
               conWebOrdNum.Close()
           End If
       End If
   End Sub

Never say never.
How do you know that it's never ever fires?
It does always fire but if you have a bug in the code for Session_End then
it will quietly throw an exception and be caught by ASP.NET without you
knowing. Like for example if you tried to use Response or Request objects in
Session_End code.

Might have a trace in NT Event log though...

George.

you can rely on session_end if you use inproc, and there are no recyle
events. check your event log for recycles.

-- bruce (sqlwork.com)