Hi Shamshad, Try this: 1.Block the YPAGER.EXE and the YUPDATER.EXE executables in the wspclnt.ini file 2.Create a Site and Content rule that blocks http.pager.yahoo.com. Remember to create a Destination Set that includes this site so that you can create the Rule. 3.The SOCKS4 Application Filter must be disabled. Users can reconfigure the Yahoo IM'er as SOCKS 4 or SOCKS 5 clients. ISA Server does not support SOCKS 5, but they can get out using SOCKS 4. Since few legitimate Windows applications use SOCKS, you can safely disable the filter. Thomas W Shinder, M.D., MCSE, MCT -----Original Message----- From: Shamshad Ahmad [mailto:sahmad@xxxxxxxxx] Sent: Monday, August 27, 2001 8:27 AM To: [ISAserver.org Discussion List] Subject: [isalist] Yahoo http://www.ISAserver.org hi all i m once more posting this question.Last time i got no reply. I want to block yahoo messanger. I sucessfully blocked MSN messanger. But unable to block yahoo messanger. Any Help. bye shamshad ------------------------------------------------------ You are currently subscribed to this ISAserver.org Discussion List as: tshinder@xxxxxxxxxxxxxxxxxx To unsubscribe send a blank email to $subst('Email.Unsub')