Installation in silent mode

[iilnar]

Hi,
I'm trying to install CodeBlocks in silent mode using 'installer.exe /S' parameter as it said here http://forums.next.codeblocks.org/index.php?topic=9221.0. There's one problems that I'm encounted with: I'am not able to set installation directory from command line. I've tried 'installer.exe /S /D="INSTALLATION_PATH"', but it installs it to Program Files folder. What's the right command line argument for setting installation path?