>>>To check if the subdirectory "mysubdir" exists I use code
>>>
>>>on error do mkdir
>>>CD mysubdir
>>>cd ..
>>>on erro
>>>
>>>proc mkdir
>>>md mysubdir
>>>cd mysubdir
>>>endproc
>>>
>>>The program moves to the subdirectory OK, but it does not return to the parent directory when the command " cd .." is used.
>>>
>>>How to make "cd .." working ?
>>>TIA, AHWBGA
>>>
>>>Ed
>>
>>To 'return' to another folder, it's enough to say SET DEFAULT TO ...
>>BTW, you can use ADIR() to check subdirectories without changing default folder.
>
>ADIR() returns files names only.
>I tried "CHDIR .." instead of "CD.." - it works
>Thank You
>Ed

Take a look at the third parameter of ADIR(). If it's "D" it's exactly what it is (i mean Fox abbreviation only:).