XnView Software

Yes, I just tried again with JPEGXL, WebP & JPEG2000 and those formats do work, but still no HEIC.

That is correct. Plugins folder & XnShellExt.dll are both in the ShellEx Folder.

I added the plugins as you said and it still doesnt work.

Windows 10 64bit
XnView Shell Extension 4.1.5 64bit

The context menu works for other image formats but does not work/appear for HEIC format.
I have been searching for supported formats but cannot find that list.

Does this application work for HEIC image format? If so am i missing something?

Thanks.