You could use Simplix Updatepack for offline/online Updates integration: https://forums.mydigitallife.net/th...egrate-hotfixes-into-win7-distribution.45005/ You could use WHD for downloading updates for offline/online integration using @abbodi1406's W7UI script: https://forums.mydigitallife.net/forums/whdownloader.56/
You need not only updates, but also certificates. Otherwise some programs will fail to install or run (i mean programs that check digital signature on start).
Examples would be helpful, what certificates are needed and what sort of programs would fail to install.