I wouldn't call windows 2000 not retro enough for SS2.
Also 9X is a horrid abomination which I refuse to re-live.
Doesn't it stand for 'old'? The correct grammatical abbreviation would be GoG.
Just like Laser, Nasa, Nato, Unicef.
I'll never understand why so many people insist on typing GOG as "GoG". I always wonder what they think the "o" stands for.
Unless you're in the US, in which case those would be NASA, NATO, UNICEF. LASER has become just "laser" in all but the most technical usage.