We have an Access made application that runs in a workgroup. All the users in the workgroup can gain access to the folder where the app is located. 

Our aim is to don't allow users to see, read or write in the folder, but at the same time allow the Access application to get into the folder in order to read, write or copy the files there located.

So, it's possible to grant access to a folder only for a specific application and not for the user that runs that application?