Can i create a custom Folder under the program files directory on vista

Question

Hello everyone,
I have built an appliaction in c++ that must run in a user level to be able to retrieve some particular informations.
The problem is that i want this application to write to a folder under the program files directory. 
Is it possible to customize the folder's security rights to solve this
The application must run on vista and xp.
Please help, thank you

Answer 1

The application works just fine on XP and i dont want to make a lot of changes to make it run on Vista, that's why i am asking this question.