The Zeus Software page indicates that only Windows XP and later NT-kernel versions of Windows are supported by nGlide. Even the pre-Version 1.00 releases were targeted at Windows XP and later. So you really don't have any reason to expect that nGlide will work in Windows 9x at all.

You are going to have to look at older releases of current Glide wrappers for Win9x support (as was the case with Tomb Raider and GliDOS) or use older wrappers that are no longer supported/developed. The VOGONS Wrapper Collection Project is your friend: The Wrapper Collection Project

I would suggest starting with dgVoodoo (not dgVoodoo2!!!): http://www.vogonsdrivers.com/wrappers/files/G … gVoodoo/D3D7-9/

Just start with the latest version of nglide and work backwards if the latest doesn't work.
As per usual devs are lazy and don't bother to list true OS requirements when it really isn't that difficult.
Test with a known good game to verify that the wrapper works.
The "patch" on the compatibility page is for installing the .sdb files created with the ACT. Those won't work on 9x and aren't needed.
Also remember that nglide is a glide to D3D9 wrapper so make sure your video card drivers are up to date, DirectX is upgraded and your video card is supported.

You can try this patch which might work on 9x:
https://verokster.blogspot.com/2019/11/need-f … tion-patch.html

You can try the below on a newer OS:
https://github.com/zaps166/NFSIISE