THE INFORMATION IN THIS ARTICLE APPLIES TO:
SYMPTOM
When attempting to remove a folder, the Server throws the 0000FF00 error, such as: 
SFTPCOMInterface.CISite.1: MX Error: 65280 (0000FF00)
RESOLUTION
You cannot delete the item you are attempting to delete, because:
    - the path is "reserved" and you cannot remove it. (for example, the "/eftclient" subfolder used by the applet cannot be removed) 
- the path cannot be deleted by the Service account (for example, in use, no permissions, etc.). 
- the path is not a folder (for example, you are pointing to a file, not a folder) 
If none of the above applies to your situation, contact GlobalSCAPE Technical Support for assistance.