Hoping someone can help a newcomer !

I'm trying to make an intelligent portal for an intranet, with severals menus (clips animation).
I want to be abble to make some of those clips visible or not, depending on the person who is connecting to the server (by testing the value of variables).
For example, i want the financial persons abble to see their menu but not the one from the marketing; and vice versa.

For that purpose, i have on the local disk C:\ of each person a flat file (name.txt) with those values.

I want this flat file to be load by the animation of the portal (portal.swf)?

I try the load variable solution on the portal.swf:
Load Variables("file:///C:/name.txt",0)

When i try on my local disk (.swf and .txt, both on my C:\ disk); it is working perfect !

But when i try to connect to my server http (.swf on the intranet server, and .txt on my C , the variable is not load at all !!

I think this is a problem with the URL adress, but i can't get it!

Thanks in advance.

PS: Is there an other way to make an intelligent portal ?