ok we found the solution (in French): Il faut utiliser la propriété AccountName de l’activeX Xceed et mettre le mot de passe du compte proxyuser.
Hi, We are using the library “Xceed ActiveX Components” for FTP.
David
Sorry but from your link, I come to the same page I download the file “xceed_.net_libraries_v6.4.exe” which requires us the installation of .Net Framework v3.5