It looks like you can extract the files with 7zip without needing to change their extensions to cab, I did it like that instead and it even actually added the proper end to the extension of the extracted files (like adding the E in exe). Also the old Control Panel works and even has descriptions for each setting which is pretty cool, however it pulls up almost completely different items, and all of which just direct you to the modern control panel or UWP settings. EDIT: Also the reason why Winver pulls Windows 8's NT version is because Microsoft has that put in to 10 and 11 for backwards compatibility essentially, and because older programs lack some sort of bit of code related to Windows 10.
About the 8's NT version: The function for getting the Windows version and number was removed in the early Windows 8 builds and since most of old versions use it, they print NT 6.2 (build 9200) as the NT version.
Winver detects the Windows version as Win8 because Windows spoofs itself as Win8 unless the program manifest declares it compatible with newer versions. Ancient winver, of course, doesn't have a manifest at all.
NTVDMx64 (MS-DOS + Windows 16-bit apps) and WineVDM (Windows 16-bit apps): Are we a joke to you? For new enthusiasts: 16-bit Windows versions are anything released before Windows 95, excluding anything NT-related (Windows NT 3.1 obviously counts).
I think it gets windows 8 build because the string still exists in 11, microsoft just made a new one and old programs still seem to point to the old one
Some apps like the older winver one in the video reports the version 9200 as it doesn't have a proper version manifest, to maintains backward compatiblity
