Can I protect access to non-php files?

[WebAIFHS]

This is a real newbie question but can't find an answer maybe there isn't one. With UserSpice I can manage access to php pages but can I manage access to non-php pages? On the website we have data files/files (pdf, xls...) that are in the "private" password protected folders that are set up by the hosting system and are accessed by a single ID/password. This files are to be accessed by the members only not by "guests" from the "public" area. The requirement is that each member has a unique ID/password which is why I'm investigating UserSpice. If I remove the host's protection how do I implement access control to these files using UserSpice or is it not possible?

Thanks in advance
Nello Ostacchini
Webmaster Anglo-Italian Family History Society