Hi, I didn't found any info in your archive . then i hope that someone could help me ;-). Ich must configure internet acces through user / password ==> here no pb to that .. But how can i configure squid to allow windows update without being identify under internet ? In other word : All our windows PC must always be on the last level from windows update without the user do anything When the user want to surf on internet he must be authentificated Any solution for me ? Thanks in advance ---------------------------------------------- SCHWOOB Sébastien ILS CONSULT FRANCE 200, Avenue de Colmar 67100 STRASBOURG Tél : +33 (0)3-88-79-79-50 Fax : +33 (0)3-88-79-79-59