Does it work on modern hardware running modern OS? Specifically, wondering if this was a Mac version. I could see WinX versions still running, but the Mac arch has changed significantly: 32bit -> 64bit, mactel -> AppleSI
I haven’t tried so I can’t say for sure but my hunch is that you’d have better luck running old CS versions on modern Macs with WINE, which can run 32-bit x86 Windows binaries on ARM just fine (via Rosetta).
Performance is obviously going to take a hit though. Depending on the machines in question one would probably get better results from a current gen x86 box running that same Windows version of CS1/CS2/CS3 running through WINE (or of course Windows 11, but then you’re stuck with Windows 11).
I have the offline CS3 Mac version too, but it's 32-bit Intel so you can't run it on anything after Catalina. The Win32 version works fine on Windows 10.