Hi José E.Ibarra i have not ever blocked MSN but i think i can give you the way 1st Create an Access Rule in Firewall Policy names it "Block MSN"(Or any other which you want) 2nd Select Deny 3rd Select "Selected Protocols" 4th Click the button Add 5th Add MSN Messenger from the list which is in "Instant Messaging" 6th then close the Add protocol and click Edit Go to Parameters 7th Select SOCKS 4 and WEB PROXY from Application Filter box Click Apply 8th In Access Rules Sources Select Internal 9th then after clicking next there will be an "Access Rule Destination" Which is the Source where you get Internet Facility and which will be "External" 10th After that select the users for which you want to block MSN Then Next and Finish Apply the settings and try it on any client(Remember you have selected Internal your Sever is said to be LOCAL Host if you select it also then it will also block MSN on your server) Thanks Allah Hafiz (I want to notify you that I am not a professional) (There may be any mistakes if any then plz let me know) Mashahood Ahmed Nizamani