Hello people of Vogons, First time poster here though not new to the site.

I had a question about a dos wad launcher for Doom or doom 2. I remember back when I was a kid (too young to read yet) we got our first computer from my uncle, it had dos on it. Well it had doom on it with a wad selector. it was quite easy to use. it was a blue screen with white text. (no its not master levels for Doom) You just tag the base doom wad with the space bar and a blinking asterisk appeared next to it. next you scroll through the list of other wads and tag a level you want to play. then hit f10 to run.

Does anyone know what this program is and where i can get it?
I've searched everywhere i can think of for this old program.
I want to use it on my Dos machine I put together and for a bit of nostalgia 🤣.
Thank you