That was a very complicated day.
The next summer, I was at the University of Florida, but off-campus. However, the Alachua [County] Freenet offered free dialup with PPP. Since etherppp emulated an Ethernet packet driver, the NCSA apps worked fine there, though obviously much slower.
Better, more complete DOS-compatible suites have arisen since then (e.g., mTCP), but the NCSA suite was fantastic. Security? Nah, none of that. But useful? OMG yes.