I was able to redirect to the log in page, if the users click on the file link without authenticating themselves...this is what i did...if you look at the linkclick.aspx web config entry, it points to "DotNetNuke.Services.FileSystem.FileServerHandler". So i went to the DNN code "FileServerHandler.vb" and there was this method called "ProcessRequest" which is reponsible for displaying that custom error message ("You do not have access to this resource"). Inside that method, it checks for authentication and that is where you need to customize the code...So i removed the custom error message and did the following steps -> i added a session variable which holds the path to the file (when you add a link module, you get a link to a file...store that link in this session variable). Then I  got the log in tab id from the portal settings...Then I redirected user to the log in tab id and added a query string to the URL...so the URL would look something like 'http:www.test.com/66/tabid/FileRequest=true"...After that once the user enter the credentials and click log in, i check for the query string...if it is null, i redirect them to the home tab...if query string is not null, i have the session variable which holds the path to the file...so i redirect them to that session variable path and the users were able to open or save the document after that...

Just a quick question...Since I added a "Links" module to my webpage, the links are secure...However i need to update the existing links which point to a simple file system and hence are not secure...I need to replace the existing links with the links from the "Links" Module..However, there are tons of links on my web site...Do i need to update each link? That is going to be very painful...Does anyone know of a easier way to do this?