CuteMouse is a DOS based mouse driver, fully written in assembly language. It's optimized for size (and speed) to allocate as small as possible amount of your precious 640KB RAM. It currently supports serial and PS/2 mice and, if BIOS support present an
...Detects network cards and other ISA and Microchannel cards and gives the IDs of them. Has memcheck program but may not work in modern Windows machines. Was designed for DOS based 1990 systems.
The Delphi WDosX Project Library (DWPL) is an Open Source
cross-platform library (based on FreeCLX) to make the development
of 32-bit DOS programs with Delphi (using WDOSX) flawless, and to make the
UI created with CLX available to DOS programs.
PCEmu is a software-only PC emulator. It emulates an 8086-based machine with VGA text graphics, EMS memory, host file system access, and `hardware' debugging. It runs DOS and most programs correctly.