Yeah uhh

No one here's going to stop you if you pirate abandonware. Go ahead and do it.

There's tons of abandonware titles out there that people could give two (-)s if you pirate or not. The only people here who care whether or not you have the Jazz 3D Alpha are people who would go nuts if they caught you jaywalking.

Is it illegal? Technically, yes. Is it morally wrong to "steal" something whose owners have given up on? That's debatable.

Abandonware is basically the crime of stealing a TV from the city dump, except it's blown out of proportion by people who can't wrap their head around the concept that laws aren't necessarily set in stone.