I've never seen any icons from a PLUS! addon, nor would I thought I'd see one, until now! Surprises me to find out some icons fit the old Windows style, while others are image exports of 3D models. Thanks for distributing!
Windows 95 PLUS! Icons
This is a icon set that contains all the icons from "Windows 98 PLUS!" those icons appeared on "Windows 98 PLUS!" themes.
The credit is to Microsoft, so yeah, those arent mine, they're from Microsoft.
Some icons might look like it's color it's lost but it's something that Windows does, it all depends on what kind of computer you're using. So if you had a "Windows 98 PLUS!" computer this might be familiar and good for you.
Enjoy them, and have fun!