Windows 10-Paint Shop Pro 9-Plugins

Adding some dll file is likely not really going to do you any good. I have never used the PSP program, however, you said your Windows 10 is a 64bit os. It is possible that that you installed only the 64 bit version of PSP, while the filters you want to use might be 32 bit and so they won't work with 64 bit PSP. That's one of the reasons the PSP installation process offers to install both the 32 and 64 bit versions of the program. Did you take both versions? If not you should completely uninstall it and then reinstall both versions.

I have downloaded the Toadies File from the link I gave in my last post www.lismibaebi.com/FiltersandPlugins/FiltersandPlugins.html

I extracted all of the contents into a Folder with the same name (Toadies)
I then installed the Toadies Folder in the usual way into the PSP Plugins folder which in my case is C:\Program Files (x86)\Corel\Corel Paint Shop Pro X\PlugIns

Yours of course will be PSP 9 (and possibly is Jasc not Corel ?)

If you are not sure where your Plugins are located you can look in File/Preferences/File Locations in the PSP program. It is important that "Enable" and "Enable Subfolders" are both checked.
This is a good tutorial for anyone needing to install PSP Plugins www.namesuppressed.com/support/plugins-psp.shtml

I just dropped the Toadies folder with the extracted contents inside into the plugins folder and restarted PSP and the Toadies plugins were there and working. There are 46 in total but only 41 of them show in the Effects/Toadies list.

I did not need to add any .dll files for these Toadies but as I said 5 of them do not appear.
You could have a look at what plugins are included in the download Zip - maybe they are the same or similar to the ones you have already tried to install.

I can not think of anything else to suggest except to make sure they are properly installed in the correct place.

I did try adding a copy of the MSVCRT10.dll into the Toadies folder but it made no difference. I am not sure if it should go there (some applications need it to be there) or whether it should be placed in C:\Windows\System32. I also tried adding it to System 32 but again it did not make any difference. I would not like to suggest you add it anywhere as it does no seem to be necessary for these particular plugins - but the ones you already have may be different.

I am sorry they don’t work for you.
I have also installed several of the other plugins from the lismibaebi site and they all work as well.
The only difference is that you have PSP 9 and mine is10.
Would any new ones from that link work ? They are all 8bf files which should be ok.
You have .NET Framework up to date .? It updates via windows update .

Maybe trying a different editor such as Paint.net may be an option.
Or maybe just add one of the plugin 8bf files to the plugin folder without including it in a subfolder and see if that resolves it.

Sorry, I understand the program works I was just making an observation that with the program being that old it would not be unusual for the coding for plugins and the like to no longer work with newer operating systems.
Just a comment really.