Yes, Predator DNC supports long filenames, long directory names, names with spaces, shared network drives, and UNC names.
Refer to the following examples:
Job 1234.NC     H:CUSTOM PARTSJOB 4567.NC     \\\\SERVER1\\C\\LARGE CUSTOMER\\PART No 1234-5678.NC
Predator DNC can also automatically name your files when uploading to the server. They can be “auto-named” using their O-number, a user-chosen name, the first comment in the file, and so on.