My employer uses non-internet connected XP machines which work in conjunction with lab equipment. There is no chance of upgrading these machines to a latter OS. My boss is looking to create a slipstreamed copy of XP SP3 with hopefully all updates but failing that, with as many updates as possible.
From looking online it appears that the main way of achieving this is to use nLite and a Win XP SP3 Network Installation Package provided by Microsoft. Unfortunately this Network installation package seems to be no longer available.
I appreciate that there are unofficial sources for this kind of thing, but under the circumstances I don't wish to use this in a business environment.
Any help would be appreciated.