Hey Omid, The key concept is that it is possible but not always worth the effort.. I have tested it to work for Windows 10 and for couple other platforms but I didn't verified how it will react to every version of Windows 7. I have tested how things works with WSUSOFFLINE and you will need to change the regex dstdomain into: acl wu dstdom_regex download\.windowsupdate\.com$ download\.microsoft\.com$ Now you need to have my latest updated version in order to avoid caching of MS AV updates which are critical and should never be cached for more then 1 hour. You can try to "seed" the cache using a client which will run WSUSOFFLINE but to my understanding it's not required since you will store more then you actually need. If one user is downloading an ancient or special update you don't need it stored unless you can predict it will be used\downloaded a lot. Let me know if you need some help with it. Eliezer ---- Eliezer Croitoru Linux System Administrator Mobile: +972-5-28704261 Email: eliezer@xxxxxxxxxxxx -----Original Message----- From: squid-users [mailto:squid-users-bounces@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of Omid Kosari Sent: Thursday, July 14, 2016 2:59 PM To: squid-users@xxxxxxxxxxxxxxxxxxxxx Subject: Re: Windows Updates a Caching Stub zone, A windows updates store. Hi, Great idea . I was looking for something like this for years and i was too lazy to start it myself ;) I am going to test your code in a multi thousand client ISP . It would more great if use the experiences of http://www.wsusoffline.net/ specially for your fetcher . It is GPL Also the ip address 13.107.4.50 is mainly used by microsoft for its download services . With services like https://www.virustotal.com/en-gb/ip-address/13.107.4.50/information/ we have found that other domains also used for update/download services . Maybe not bad if create special things for this ip address . Thanks in advance -- View this message in context: http://squid-web-proxy-cache.1019090.n4.nabble.com/Windows-Updates-a-Caching-Stub-zone-A-windows-updates-store-tp4678454p4678492.html Sent from the Squid - Users mailing list archive at Nabble.com. _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users _______________________________________________ squid-users mailing list squid-users@xxxxxxxxxxxxxxxxxxxxx http://lists.squid-cache.org/listinfo/squid-users