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Why is Win32s needed on Windows 3.1?

April 26, 2017needed win32s Windows

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Why is Win32s needed on Windows 3.1?

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ZTERM for Windows 1.2 is a 32-bit application (called a Win32 application in Microsoft parlez) designed to run on Windows 95 and Windows NT. Windows 3.1 and Windows for Workgroups 3.11 are both 16-bit operating systems and therefore incompatible directly with ZTERM 2000. Win32s (the ‘s’ stands for subset) is an extension for these 16-bit operating systems that provides some compatibility for Win32 applications, like ZTERM. This doesn’t mean that all 32-bit applications will work on Windows 3.1 – we have to go to great lengths to ensure that ZTERM runs on Win32s as many of the advanced features of Windows 95 and Windows NT simply aren’t present.