< snip >
>>MkDir refuses to create subdirectories in hidden directories.
>
>This is not true. If I use two separate MKDIR commands
>
>

>MKDIR (SYS(2023)+ '\mykatal')
>MKDIR (SYS(2023)+ '\mykatal\andmed')
>

>
>all is OK: VFP creates subdirectories in hidden directories in this case !
>
>however, it does not create a subdirectory with a singe command:
>MKDIR (SYS(2023)+ '\mykatal\andmed')
>
>Why ?

Ask someone from MS VFP team. I donot know. CHDIR surely does not work with hidden directories. But you can chdir into a subdirectory of a hidden one.
(Sorry for reviving dead thread)
Regards