shell xcopy not work with unusual letters

[Neko Novi]

Hi, im using following command to copy folder from one place to another,

shell xcopy "C:\Users\.....\Doc" "Doc_new" /I/s

but whenever i have files in it with unusual letter in its name, for example spanish ones like "ó" i get the error message and those files are copied but with error (for example excel files that do not have anything inside). How to prevent this, without renaming the files?
Thanks!

[Neko Novi]

Hi, im using following command to copy folder from one place to another,

shell xcopy "C:\Users\.....\Doc" "Doc_new" /I/s

but whenever i have files in it with unusual letter in its name, for example spanish ones like "ó" i get the error message and those files are copied but with error (for example excel files that do not have anything inside). How to prevent this, without renaming the files?
Thanks!

Actually i just realized it is the issue with zipfile not copy, i get error reading... so whenever i have some strange characters in the names of the files i get useless copy in zipped folder..