hey i m developing chat application in asp.net using vb and i want to show functionality like if one user sends messages to another user so the notification is displayed that "You have a new message" in the right bottom corner of the corner as in like in the outlook and also another scenario is if browser window is minimized and any message is arrived to the particular user then orange color blinking effect must be given to the browser icon present on the task bar.
application developed in asp.net with vb framework 4.0
db : sql server 2008 r2
please help.....