The answer to that is in the "sources" section. Raymond Chen first claims that Windows 2.x supported protected mode (which is half-true; it could run DOS applic

The answer to that is in the "sources" section. Raymond Chen first claims that Windows 2.x supported protected mode (which is half-true; it could run DOS applications in protected mode, but neither kernel nor applications supported it), and then finishes with saying "standard mode (Windows/286 style)" which is just wrong, as explained in the section about protected mode Windows kernel.