MP4 don't play at Slide-Show

[DennyHei]

i need the classic-version because the mp-version can not create slide-show how i need it

i have a second laptop (Win 11 Home) where the video in mp4 don't play and xnview shut down, i have installes the k-lite-codec-pack

is there another codecs i need?

my old laptop works with the mp4-videos but this laptop is old and big videos play only slowly...

thx for help!

[XN749]

I had the same problem after upgrading to the latest version. After lots of trial and error, what i had to do to fix it was. Uninstall, search my C: drive for every leftover file with "XNview" in the name, and delete those. then I downloaded and installed older versions, redoing the uninstall , search for files, and delete them process, until I found one where it worked again. in my case version 2.50.4