Setting read and write access to foler from deployment

[ninjaimp]

Hi

I am just trying to get to grips with the setup tool in visual studio and seem to be making progress but im falling over with access permissions.

My projects includes an mdf table and when i install my project the folder and db file is always set to read only and the application cannot write to it.

How can i change or set the permission when the application is installed?

any help is appreciated