[Scroll down for the good news!]
I put one of these early Creative Soundblasters in my Dell Optiplex yesterday, running Windows 7. I mean the CT5807, also known on the support site of Creative as the PC16, But the driver they have available did not install in Windows 7, stating that there was no Creative Soundblaster installed...
It was not recognized, Windows update couldn't find a suitable driver, and I couldn't either on the internet.
So I bought a secondhand Creative Audigy in frustration.
🙂
BUT...
... one day later upon booting my pc, Windows update popped up: 'Updates available': "Driver update for Creative AudioPCI (ES1371,ES1373) WDM". Installed it, and it works. Amazing really, the soundcard is over 10 years old, I think.
That seems to be this particular driver:
http://drivers.downloadatoz.com/38505,199806/download.html
Scroll down to 'Click Here to Download Free'.
I of course have not tried to install this, as it already works on my pc.