It is sad to say that etisalat BIS no longer work on PC for any new subscription, but however if you have any current subscription on, you will still be able to be making use of it until your plans runs out or until you exhaust your MB, and whenever you have exhausted it you will no longer be able to subscribe and use it on PC again, even after implementing the tricks that allowed you earlier on to make it browse on PC. In other word, it has been blocked for any new subscription. Only airtel BIS is currently rocking well on PC and other devices
http://highteknology..com/2013/12/latest-update-on-etisalat-blackberry.html