Retroarch command line startup

RetroArch Windows devices
#1

Hello! I have a this file hierarchy:

games pictures sounds retroarch (of course, including retroarch.exe and cores folder) attract-mode.exe (frontend)

How i can startup RetroArch with needed core and choosen ROM (from GAMES folder)? I need to use relative paths. What i must write in command-line switches?

#2

./ or .\ work for relative paths.

retroarch -L .\cores<core> .\games<game rom>

#3

nothing happens

#4

log says “Failed to load content” when i try to use .\

#5

WOOOOW, …\ works