XnView Software

Your solution worked.

Thanks again for your help and effort -
- I gratefully acknowledge that you tested the solution before proposing it.
Excellent.

Thanks XnTriq, especially for the quick reply....

but converting to webp worked fine until recently,
- though I have no idea what changed on my system.

I can live without upgrading, but would like to keep
using XnConvert as before.

Can I use an older version of the dll ?

(...or any other ...

I recently started getting exactly the same error message.

and indeed, removing webp.dll fixes the error.

However, I use XnConvert to convert to the WEBP format,
so this fix removes exactly the functionality I need.

Is there another workaround to solve this problem ?