There are two methods to do it. NTFS or DMS.
If you are using NTFS then you should go to the mounted folder --> right click the application file -->security--->
And the user to whom the application needs to be seen.
If you are using DMS go to management console --> Select user document tab --> click on the application and you will see authorization on the right hand side... Add the user name into it...
Attach snap shot will help you in understand , the type of authorization currently you are using..
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