Get Previous Directory

Question

Dear Dudes,

Heres my problem. i got a directory "...//1", and in that dir, there is a Launcher "launcher.exe". now, in "...//1" there is a directory in which the actual game
is in.Now, how do i get data from the previous "...//1" Directory? Help willl be much appreciated :)
(Sry if my English is bad, its not my first language.)