How to Change Target platform to x86 in project configuration

Hi,

     I'm trying to automate word creation process using Microsoft.Office.Interop.word but i'm getting an error "Could not load COM object ..." I know i have to change the target platform to x86 but in the K2 project configuration i'm unable to change it.

I changed in solution level but platform change is not taking any effect. when i build or deploy the projet the platform is still "Any CPU" .

Any suggestion would be useful,

Thanks