*************************************************************************************************** Many users meet invalid URL message in popup window. Because some of feed engines don't accept custom user-agent such as "FeedNotifier/2.6 +http://www.feednotifier.com/". They don't send valid xml as response for feed url. A solution is that I change user-agent to browser's user-agent. I used user-agent for Chrome. *************************************************************************************************** Feed Notifier is a Windows application that resides in the system tray and displays pop-up notifications on your desktop when new items arrive in your subscribed RSS or Atom feeds. Feed Notifier is for you if you want a news aggregator that focuses on real-time feed notifications and leaves out all the other stuff that comes with most news readers. * Supports all common RSS and Atom web feed protocols. * Clean look and feel, doesn’t get in your way. * Configurable polling interval for each feed. * Configurable popup duration. * Configurable popup size, position and transparency. * Configurable popup border size and color. * Popups do not steal keyboard or mouse focus from other applications. * Popups show item age and author. * Navigation controls in popups to view next/previous items. * Advanced keyword filtering options. * Supports launching from Firefox and other browsers via feed:// protocol. * Supports enabling/disabling individual feeds. * Deactivates when user is idle to save bandwidth and processing time. * Supports authenticated feeds that require a username and password. * Supports using a proxy server. * Displays favicon for feeds when available. * Multi-threaded feed polling.