Problems with Atelier Kaguya game

[senrada]

anytime i try to run the game i get a compatibility error.

full error:

The version of this file is not compatible with the version of Windows you're running. Check your computer's system information to see whether you need an x86 (32-bit) or x64 (64-bit) version of the program, and then contact the software publisher.

i dont get what i did wrong. i mounted the mdf, i installed the game with my format and non unicode languages being japanese, it's installed in the root of my c: drive. what do i do? please help, this has been driving me crazy.