Modifying default behaviour of MS VPN client

I have a situation on my hands where users have no username and password
info in the MS VPN connection dialog but when they hit connect the
client will use the username and password of the currently logged on
user which grants them a successful authentication.  Anyone know how to
disable this behaviour and require that the user explicitly enter their
username and password in the connection dialog for each VPN connection?

Thanks,

Scott
































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