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joakleaf • today at 8:59 AM • 1 reply • view on HN

Enhanced mode was already in 3.0 (and I think allowed for flat addressing)

However, Win32s was introduced in 3.11 which a subset of the Windows 32-bit API from NT.

3.11 also introduced 32-bit disk access and 32-bit drivers.

Microsoft did 32-bit in steps -- it was confusing already back then.

Replies

dspillett • today at 11:28 AM

> 3.11 also introduced 32-bit disk access and 32-bit drivers.

IIRC a lot of it wasn't turned on by default due to hardware/driver compatability concerns, and there were articles all over the place about how to turn it on for extra performance. Essentially they used optimising tech-heads the world over as a giant beta-test group for parts of Win95's IO subsystem.