Citrix/W2K3 - Limit concurrent logins

Hi,

I don't know if anyone will have an answer for this, but it's worth a try.
We're running Citrix Access Essentials and a W2K3 server, and we need to limit the number concurrent user logins. There's no way to do this in Citrix without upgrading so I'm looking at ways of doing it through the server.

I don't want to use LimitLogins or CConnect as they involve deploying software to every client, and I'm not sure how this will work with Citrix.

My best attempt so far was to write a login script that mapped a network share with an access limit, which I found on this site. The script was:

@ECHO OFF

net use X: /delete
net use X: \\SERVERNAME\test
if exist X: goto end
if not exist X: goto logout
:logout
echo Too many users logged in.
PAUSE
logoff.exe /LOGOFF
:end

The only problem is when a second session is started the original session is automatically logged off. Is there any way to keep the original session and logoff the second session?
Is there a better solution to this?

Thanks!