DOS extender
DOS/32 is an advanced 32-bit DOS extender created for replacing DOS/4GW extender and compatibles. This extender can be used in various environments, from embedded systems to DOS emulators, by both developers and end users alike. Unlike DOS/4GW, DOS/32 is free, open-source and can be extended to create a unique executable file that incorporates the extender memory tool and main application code.