Tray Helper it's small award winning application with many features (f/e: email checker, auto mail responder, anti-spam, popup-killer, event reminder and more).
There was a new version (2.5) released recently (Aug 20, 2002) with following changes:
Tray Helper can quick test on startup if your PC is able to use MS Agent characters, if yes you will be asked once if you want to enable it.
Better support of Microsoft Agent technology.
MS agent characters can now whisper at night (between hours set by you).
Removed bug in auto-responder.
Mail filters can be configured to be used only on specific days of week. For example you can set a filter to forward some messages at your mobile device all week but not in Sunday.
Added some other minor features.
Removed bug: if you set Tray Helper not to hide window of application after start-up and had defined password for application - this password was ignored at start-up.
Tray Helper shows a splash screen on start up. (Splash designed by Piotr - thanks !)