Maybe I’ll get some hate for this, but years ago when I worked at a civil engineering firm this was the default image viewer IT had mapped every image file to open with - it was a nightmare! Every coworker I had (myself included) would constantly complain about the number of times they had to change to [literally anything else]. There were three distinct things I remember we all hated: 1. The image never opened full size, the window was always small and you had to manually drag the window frame to make it viewable. 2. It didn’t “zoom in” when you used your mouse wheel correctly, it would instead cycle through all of the images open in the folder you were working in. 3. When you clicked the arrows at the top to flip through a group of photos in the folder you were in (I recall the keyboard arrow keys not working for this, too), once you reached the end it would go to a black “fake” image, that you then couldn’t arrow back. It didn’t just cycle through the images, you had to close the window and reopen the image you were on.

Needless to say, I have zero fond memories of this program. Maybe these were nuances of our particular setup (many other such cases at that firm, sadly), but…eh, whatever. There’s better out there.