My first though about a DOS browser was Netscape 3.x but IIRR, it's java-challenged.
FWIW, I've only known two people who used DOS 4. One was smart enough to make it 'work' and the other was so far out to lunch he was almost back from lunch.
M2
If at first you don't succeed, you're about average.
Almost invariably 'DOS 4' turns out to be the Windows version. I understand that the "real" MS-DOS v4 from around 1990 was probably the buggiest ever - and accordingly, pretty unpopular.
I don't use Arachne much - mainly offline on older machines, but likely the best bet.
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