Question
Why am I receiving an "invalid command" error when trying to execute the NLST command over an FTP connection?
Answer
PureFTP has changed the functionality of the NLST command in version 1.0.48, which is listed in their changelogs here:
There is additional discussion on this issue in our forums post here:
https://forums.cpanel.net/threads/microsoft-expression-web-4-no-longer-works.678065/
Since that change is not part of the cPanel system there is not a way to reactivate this behavior on the machine, so alternatives should be investigated.