Shared Preferences Across Application

Hi all,

I have some prefernces created using xml in one  application . i want to access it in other application. How i can achive this?
 I am using ListPrefernces . I tried to use following code in my outside application to read the prefernces but its not getting the values,

myContext = createPackageContext("com.xyz",Context.MODE_WORLD_WRITEABLE);
           
            SharedPreferences testPrefs = myContext.getSharedPreferences("com.hcl_Kodakpreferences", Context.MODE_WORLD_READABLE);
                     
            String computerName = testPrefs.getString("firstKey", "defaultValue");