This is a DOS/Win3.1/Win95a - FAT16 Suspend-to-Disk Utility.
Check out the support site (see below) for the MicroFlex FlexNote 1200L Notebook. Their FTP Link on the following URL page will get you to the older DOS PHDisk Utility for Phoenix BIOS users. www.siecs.com/support/chaplet/1200l.htm#PHDISK
This page helped me with my old Mitsubishi Amity/CN Pentium 133 MiniNotebook - with Device Drivers for Win98,SE,NT & PHDisk for Windows. I needed ESS1878 AudioDrive drivers, NeoMagic 128ZV Graphics Drivers for Win98SE. Great site. Thanks MicroFlex! -MJones