Does Backer have difficulties with very long file names?
Not Backer, but Windows. The maximum length of a path, including drive and directories, is approx. 260 characters. Windows shortens names accordingly or prevents the entry of additional characters, respectively. But Windows can be tricked by access via a UNC name instead of a drive letter. A path can get longer than 260 characters this way. Windows will then issue nonsense messages like “A file name cannot contain any of the following characters: …”. In contrast, Backer will issue the correct “Error 206 – Path too long.”.
