E.g. I search “JetCommitTransaction”, search finds <https://msdn.microsoft.com/en-us/library/gg269191(v=exchg.10).aspx> which redirects to <https://learn.microsoft.com/en-us/previous-versions/>

That API is available in all versions of Windows starting from Win2000 to the very latest Win10, and even available for Windows 10 UWP apps, <https://learn.microsoft.com/en-us/uwp/win32-and-com/win32-apis#apis-from-esentdll> so it’s not deprecated or something.

archive.org works but it's slow and inconvenient.