I dunno... Unix usually sets aside virtual memory in it's own contiguous partition, with its own filesystem. MS has been calling it pagefile.sys since Windows NT; I think 95 and 98 still use win386.swp, though. The best trick with either one is to make and size the file right after you install the OS and defrag the drive, or to put the virtual memory on a seperate partition from the OS - makes OS performance more efficient that way, and helps a little to prevent the usual file fragmentation woes.