I remember using strings in the early 90s on DOS boxen, no recollection of where I got it from though, maybe a coverdisk, I could have implemented it myself, it's relatively trivial.
It's also worth remembering that DOS came with DEBUG, so if you had the time and patience you could dig about in anything
It's also worth remembering that DOS came with DEBUG, so if you had the time and patience you could dig about in anything