Mystery of Windows VHD [Solved]

[jca]

When I want to upload a few loose files to PCXT instead of firing up an emulator or a VM to create floppy disk images I use a small Windows VHD:
I attach thVHD, copy the files, detach the VHD and upload to MISTer.
On PCXT I mount the VHD as the 2nd drive and get the files from there.
I wanted to transfer files from PCXT to Windows and did the procedure in reverse but the files do not show up.
'Short story: Long File Names. PCXT does not know anything about LFN and thus does not create any.. Windows does not display files without LFN with the exception of CMD -> DIR where they show up.
Although invisible they can be used in Windows programs: just type their name in the Open Dialog.