.net 3.5 Sp1 Offline Installer !!top!!

While Microsoft hosts the original 3.5 SP1 full package, it is designed primarily for Windows XP, Vista, and Server 2008.

Alternatively, if you have a Windows installation ISO or USB drive, the offline source is at: E:\sources\sxs\ (where E: is your install media drive). .net 3.5 sp1 offline installer