Block Yahoo Messenger Through Hosts File

hi to all

i was using following addresses in my hosts file they were working properly

mean yahoo messenger was blocking this way but now these links dont work

wheter they changed their servers or they changed the way yahoo messenger

sign ins.

kindly help me how can i block yahoo messenger through hosts file

127.0.0.1 messenger.yahoo.com/webmessengerpromo.php

127.0.0.1 messenger.yahoo.com/intl/aa/

127.0.0.1 messenger.hotmail.com

127.0.0.1 gateway.messenger.hotmail.com

127.0.0.1 messenger.yahoo.com/*

127.0.0.1 http.pager.yahoo.com/*

127.0.0.1 rad.msn.com #[affects MSN Messenger]

127.0.0.1 a.rad.msn.com #[ADSAdClient31.dll]

127.0.0.1 b.rad.msn.com

127.0.0.1 blog.messenger.yahoo.com

127.0.0.1 http://www.messenger.yahoo.com

127.0.0.1 msg.edit.yahoo.com

127.0.0.1 msg.edit.yahoo.com/*

127.0.0.1 messenger.yahoo.com

127.0.0.1 messenger.yahoo.com/*

127.0.0.1 http.pager.yahoo.com

127.0.0.1 http.pager.yahoo.com/*

127.0.0.1 scs.msg.yahoo.com

127.0.0.1 scsa.msg.yahoo.com

127.0.0.1 scsb.msg.yahoo.com

127.0.0.1 scsc.msg.yahoo.com

127.0.0.1 msg.sc5.yahoo.com

127.0.0.1 msg.yahoo.com

127.0.0.1 http://www.yahoo.com/r/p1

127.0.0.1 http://www.yahoo.com/r/gj

127.0.0.1 csXX.msg.yahoo.com

127.0.0.1 csXX.msg.sc5.yahoo.com

127.0.0.1 *messenger.yahoo.com/*

127.0.0.1 *msg.yahoo.com/*

127.0.0.1 *shttp.msg.yahoo.com

127.0.0.1 cs1.yahoo.com

127.0.0.1 cs2.yahoo.com

127.0.0.1 cs3.yahoo.com

127.0.0.1 us.yimg.com

127.0.0.1 us.dl1.yimg.com

127.0.0.1 insider.msg.yahoo.com

127.0.0.1 insider1.msg.vip.sc5.yahoo.com

127.0.0.1 adv.messagia.com

127.0.0.1 pager.yahoo.com

127.0.0.1 uk.messenger.yahoo.com

127.0.0.1 sg.messenger.yahoo.com

127.0.0.1 compnetworking.about.com/od/p2ppeertopeer/qt/yahoomessenger.html

127.0.0.1 ca.messenger.yahoo.com/tos.html

127.0.0.1 in.messenger.yahoo.com

127.0.0.1 us.messenger.yahoo.com