Coding problem writing XML-Word text in Windows 10

Hi All,

I have distributed a C++ application that writes XML files for Word. It works fine for most of my users but for some of them the text is written as coded. For example, normally my application writes:

<w:t>1. Dati generali</w:t>

whereas for these users it writes:

<w:t>葬&#x02;$h&#x0A;&#x01;</w:t>

Since all these users run the application in Windows 10, I thought that the problem could be some settings in Windows 10 itself, so I deeply investigated in Windows Control Panel what settings could be (local language, region, etc.), but with no luck.

Any help would be greatly appreciated.

Thanks,

Gianni