Adding plugin for Photoshop CS3, but not active when I re-install Photoshop CS3 on my new computer

[Katcoll]

Hi !

I added files with the 8BF exention (plugins) in photoshop CS3 plugin which worked fine on my old computer. By re-installing Photoshop CS3 on my new computer, the plugins show up in the Filter tab, but they aren't active. Do you know why ?

At pleasure to read you

[c.pfaffenbichler]

Are they supposed to work in grayscale images? 

Please read this (in particular the section titled "Supply pertinent information for quicker answers"):

https://community.adobe.com/t5/Community-Help/Guidelines-Tips-for-the-Adobe-Forums/td-p/4788157

[Katcoll]

Of course NO

[c.pfaffenbichler]

But wasn’t the image in your screenshot grayscale? 

[Katcoll]

But wasn’t the image in your screenshot grayscale?
It doesn't matter, a file must be open, even new for the filters to be active.