UTF-8 label with nconvert on windows

[fltcpt]

I am a bit surprised I couldn't find any topic on this:
Can someone help out? I have a windows .bat file that has a -text option where the argument is a utf-8 string,
much like the one I pasted below, but when I run the converted image shows "??" instead of the string in utf-8..
I must be doing something wrong, it looks like other people have no problem with this. What is the correct way
to create .bat files that run nconvert and let it take non-ascii-7 characters

chcp 65001
"C:/Program Files (x86)/XnView/nconvert.exe" -npcd 2 -size 256x256+0 -ctype rgb -corder inter -text_flag bottom-right -text "some string in utf-8" image.jpg

[xnview]

currently nconvert use default charset, so a parameter to enter as utf8 need to be added

[fltcpt]

Thanks so much for that answer, I look forward to option being added

[fltcpt]

Is there any plan to add utf8 in the near future?

[sartaros]

Hi!

The utf-8 text is't not displayed in the XnView Comment window either

The png format specs :

PNG text strings are expected to use the Latin-1 character set. Encoders should avoid storing characters that are not defined in Latin-1, and should provide character code remapping if the local system's character set is not Latin-1

Alex