I uninstalled BIP and the code 128 font again. The weird thing is (as you'll see on the screen below), it isn't in my list anymore but I can't still choose "code 128 if I force it by writing it manually :

The text "test" on this screen above is written in code 128 font (and it isn't displayed as a barcode anymore). The font seems as it is "semi-installed" because if I force manually with a randomn font such as "code 127" I get this kind of message :

My internet is slow so I cannot afford but when I have a good connection I might need to uninstall/reinstall word to do somemore testing.

Hi Rajesh,

My latest issue is that I get this kind of unreadable barcode in my report (If I put the encoded string " <?format-barcode:SHIPMENT_XID;'code128a'?> " ) :

Apparently it would be coming from the font I downloaded here : https://www.dafont.com/fr/code-128.font  but I uninstalled it (seems semi-uninstalled as I explained in the post above, which could cause the problem) and reinstalled BIP after but the problem is the same.

It works ! Apparently it was in the font mappings properties of the report in BIP :

I had several font families that I had uploaded onto bip then suppressed them (in administration -> font mappings) but they were still in the properties of the report. So I deleted them there aswell and apparently I had to rename the "Default Code 128" into "Code 128" (how the font is named in word) for it to work (I had already dont it in administration -> font mappings) but it hadn't work at the time, for many reasons I guess.