Protel 88SE

You'll have a hard time finding it for sale these days. And I've never tried running it on anything other than XP.

If it's not a very complex design then why not try this:

There's a 'fix' to allow P99 to run on 64 bit on DiyAudio forum. It involves patching 2 10 byte strings in the .exe with NOPs.... The converter won't work for me as I want to make new designs. All of the 'free' EDA packages I've looked at are way too complex for my old brain..

How complex do you imagine those designs to be? I.e., the harder you push the tools, the better the tools you will need.

The opposite also being true: simpler tools for less stressed use.

It appears to be downloadable if you think yandex and dig hard enough. Also torrent. But I'd test any such download on an isolated wipeable box or VM.

A few simple designs ATM... 2x 7 seg LEDs ( 3 sizes) 14 x sm leds. Doesn't get much simpler than that. If I wanted to be a cheap skate, I'd just lay out the PCB without a schematic, but that's piss poor doing it that way. It has to be schematic, netlist,pcb.