Just confirming in reproduceable way:
1- copy a file with long name (transfer it via Aexplorer, Dopus, or compressed in an archive). Put it directly on RAMDISK: ;
2- See it via Workbench: the name will appear truncated;
3- But in Dopus 4.18, the name appear just like the original, generated by a peecee with Win XP or other (better) OS. You can rename it to whatever you like.