There is no EDIT.EXE. If you have an EDIT.EXE you probably need to check for malware. (-:

It was EDIT.COM, and in the days of long ago that was just a way of invoking QBASIC with the /EDIT command-line option. At which point the project becomes one of porting an old MS-DOS full programming IDE to 64-bit Windows, just for its text editor part.

Also, much of MS-DOS was written in 16-bit 8086 assembly language; so porting MS-DOS programs is not a mere matter of compiling a high level language with a compiler that targets the new platform and processor architecture and tweaking whatever breaks.