How to find a path in Application server?

Hi,

I have a reqirement that i need to download the original document which is attached in the DIR links for each line item in the PO.

Say for Eg. user is uploading the original document in CV03n.

Through program i have to download it and save it in local desktop.

But as per my concern when user uploads that document in CV03N, it should get updated in application server.

I wants to know how can i find that path through the document got updated in AL11.

Please let me know if you have any idea on this.

Also please let me know if my question is not clear.

Regards,

Prabu