Pre-NT? Are you sure? My understanding of history is that the PE file format was part of NT 3. I would have thought that earlier systems kept as much paged as possible, but maybe that&#x27;s wrong.<p>Maybe it&#x27;s not worth it any more. My phone has 8GB of memory. I do remember a time when you could boot Windows XP on a system with 64MB of RAM when you needed special configuration &#x2F; custom kernels to boot Linux on such a system. You would think that this was because of the pile of small choices made to relieve memory pressure...