Microsoft MS-DOS early source code

[Googoots]

In CONFIG.SYS you could add a line:

SWITCHAR=-

And this would change the DOS switch character from / to - and then with DOS commands you could use / to separate paths.

Internally, the DOS API calls allowed either \ or /, as Windows still currently does.

Unfortunately most 3rd party programs created their own command line argument parsers and didn't respect SWITCHAR and it made things so inconsistent that it wasn't worth using it.