schezo thumbnail ext. 1.03 + adding .spi susie plugins doesn't work on win9x, looking for solution

Just so i'm trying to get the schezo thumbnail ext. 1.03 application to work on my 98SE system, but to also work on all windows 9x versions / 2k. the program apparently is to support thumbnail viewing while also having web view enabled at the same time, at least according to one of the posts below, there's a picture showing it, but it's unclear if it's 98SE, 2K / me, etc. I installed it, and then adding various .spi susie plugins i found that were compiled in either c++ 6.0 or visual studio 2003, i tested 2 different kinds of jpeg versions from these packages and none of them work. Xnview 1.82.4 still shows as the icon. not associating xnview just brings back the microsoft default icon when you have no associated 3rd party program, so it doesn't appear that it's related to xnview conflict per say. There's hardly any information on this program and the susie plugins, how to properly install them, etc. I copy pasted below how i got to this point before doing more experimenting: 

find thumbnail shell extension for windows 9x and even 2k ( Thumbnail Extensions 1.03 By Schezo ):

initial searching - 
other post ( dont download the later link in this thread, it contains malware ! ) -

we must install plug ins though for any non text file thumbnail previews to be shown:
https://www.digitalpad.co.jp/~takechin/download.html#ifjpeg
some newer ones from here... - https://www.asahi-net.or.jp/~DS8H-WTNB/software/index.html?utm_source=chatgpt.com

note - iftwic.spi is needed for reading .ani files, and may relate to gdi+, which could possibly work on windows 95, 
provided you download an old enough version of both?

lzr.spi - gif related plug in, may or may not be needed on windows 95 or later, since we have the newer ones that 
supposedly replace the older one?