https://bugs.winehq.org/show_bug.cgi?id=42412
--- Comment #26 from Bruno Jesus 00cpxxx@gmail.com --- Are you using the ftp command line utility? What is its version? If you are lucky enough and it is this package [1] maybe you are hitting an app bug that was fixed some days ago.
[1] http://os4depot.net/?function=showfile&file=network/ftp/download.lha