These programs allow you to use part of the TPA as a ram disk. The ram disk is addressed as drive D:. The size is set by the version of the program you use. The number in the MEMxx.COM file name indicates the size in kilobytes of the ram disk. These programs work with most every program I've tried -- I'm writing this documentation on a ram disk with my favorite word processor. But there are a few things you should know: They won't work with other high-ram utilities like RSX's or key-definition programs; they'd be competing for the same memory addresses. You can't load one ram disk while another is active. Does wierd stuff... You have to cold-boot to remove a ram disk. REMEBER TO COPY YOUR FILES OFF FIRST! To use the ram disk as a different drive than D:, use your favorite de-bugger to patch these bytes: ADDR: Is: Change to: 0208 "D" desired drive letter. 0235 "D" desired drive letter. 0356 03H number of desired drive (00h=A, 01h=B, etc.) I have no idea who wrote these programs; my sole contribution is documenting the patches to change the drive specification.