troubles reading other apps config files

I have a problem. I have to access to the data folder of other applications from my application to read configurat开发者_JAVA百科ion's file and so on but it seems it's possible only to read data from the sdcard and my application's data folder. Can you suggest me how to solve this problem?

You can't, it's a feature.

It would be a security risk if all applications had access to other apps data.