Hi, The scenario is : I have a domain account set on a network share, this restricts all access to this folder which contains Restricted PDFs I have an web App that needs to open the file (on demand by many people, who are restricted via the web application) as a file stream. I'm using windows authentification. So i'm trying to access a file under my security context which gives and invalid login/password, but I need to open the file under the only account that has access to the share. Is this possible? Cheers