Re: How to make a web site be single access??

In theory this is posible to do.

You could use the Global.asax file, for example:PublicClass Global_asax

Inherits System.Web.HttpApplicationSub Application_Start(ByVal sender AsObject,
ByVal e As EventArgs)

' Fires when the application is started

If IsNothing(Application("oUsers")) Then

Application("oUsers") = "0"

EndIf

EndSubSub Session_Start(ByVal sender AsObject, ByVal e As EventArgs)

' Fires when the session is startedApplication("oUsers") =
(CInt(Application("oUsers")) + 1).ToString()

IfCInt(Application("oUsers")) > 1
ThenResponse.Redirect("NoAccess.aspx")

EndIf

EndSub

Sub Session_End(ByVal sender AsObject, ByVal e As EventArgs) 

' Fires when the session endsApplication("oUsers") =
(CInt(Application("oUsers")) - 1).ToString()

EndSub

EndClass

In the real world though, some issues will arise like:

What if a user closes the browser without loggin out?

Good Luck

I don't beleive that will work.  How will you know when Session_End fires?  It
won't fire when the browser window closes.  It fires when either
Session.Abandon() is called or the Session timeout expires.

OK. Thanks all for your kind responses.