I didn't find the code
EDIT: Oops, I found the code in another file. I am a little bit confused because there are two files with the same name but in different folders...
The Game Creators/AGK/IDE/apps/interpeter/General-Core/CoreForApp.h
and
The Game Creators/AGK/Projects/Native/Windows_VS2010/General-Core/CoreForApp.h
which I've include in my all projects so far...
By removing the FREEVERSION define, which is my case, then I am getting compilation errors
EDIT #1: OK, I've found the solution, I have to define the platform