PopBar
PopBar lives in your system tray and it's only job is to hold your favorite programs and internet links and have them available at the click of a button! You can add any file on your system or internet link to PopBar. The next time your screen becomes cluttered with open Windows, desktop icons,... Get this program for free as part of the JGOware Software Membership.
http://jgofiles.com/download/jgopopbr.zip - 654Kb - Download - Screenshot

Clock Tray Skins
Clock Tray Skins is the advanced replacement for standard Windows tray clock. See the time, seconds, day, date and system UpTime in different skins. Displays the time for any of the time zones. Over 100 skins are included in the distribution. Support Longhorn clock style. ... It's also an atomic-time synchronizer and Calendar.
http://www.drive-software.com/download/clocktsk.zip - 1,008Kb - Download - Screenshot

MicroCalendar - Windows Tray Calendar
MicroCalendar is a Windows system tray popup calendar. It is small, unobtrusive, and always ready so you can easily check calendar dates without messing up your computer's system time or having to use a resource-intensive application. Features an attractive user interface, a tray icon that shows... This calendar doesn't contain any extra, unneeded features to clutter it up or weigh your computer down; no journal, no scheduling, appointments, or alarms -- it's JUST a reference calendar, elegant and simple.
http://www.asyouthink.com/microcal.../downloads/microcalendartrial.zip - 2Mb - Download - Screenshot

CheckInbox
CheckInbox checks multiple POP3 email accounts. With five forms of alerting you to new emails, CheckInbox makes sure you are immediately notified if you have new email. It supports user settable check frequency, as well as options for starting up to the system tray. ... CheckInbox minimizes to your system tray, so it is out of the way while you work. ... 7 will now recreate the tray icon if Explorer crashes (! ... This program requires the Visual Basic 6. ... 0 runtimes (MSVBVM60. ... DLL) and the Microsoft Windows Installer to install.
http://www.victechsoftware.com/download/CISetup.exe - 346Kb - Download - Screenshot

LanBuster
When you need all your computers resources for yourself. LanBuster lets you easily turn on or off filesharing. LanBuster runs in the system tray, and signals with the icon color whether the LAN has been disabled or not. A double click on the icon in the system tray is all that is needed to... LanBuster can be useful for everything from mp3 encoding, cd-bruning to online gaming. ... Your internet connection is not affected.
http://www.solid-programs.com/lanbuster/lanbuster.exe - 550Kb - Download - Screenshot

Tray Commander
Tray Commander is a launcher that was developed to let you quickly run your frequently used system commands directly from the system tray. Tray Commander adds a single icon to the tray which, when clicked, displays a menu to which you can add commands. ... It can open\close your CD drives, reboot, shutdown your system, run your favorite applications, launch any screensavers, set video mode and more. ... Also you can run several commands with just one click.
http://www.ardamax.com/setup_tc.exe - 844Kb - Download - Screenshot

A Really Small App
A fun and free Really Small App showing Running Tasks, Current Startups, and CPU & Memory utilization graphs. A Really Small App also tells you if remote computers are connected to your PC. If you are part of a network and you share printers and files on your PC, then that figure may... Can be minimized to the System Tray where it also enables you to change your default printer directly from the System Tray. ... Finally, hovering the mouse over the System Tray icon for the app gives you an abbreviated summary of the stats it is tracking for you.
http://answersthatwork.fileburst.com/tut/A_Really_Small_App_Setup.exe - 1Mb - Download - Screenshot

PBTray
If you want to add a Professional Style to your Application without the need of large coding then PBTray is right solution for you. PBTray it's an ActiveX Control that is able to add Icons to the system tray without the need of using System API. Only by setting the Icon and ToolTip properties,... PBBalloon integrates with PBTray to display Balloon Messages under the System Tray Icons. ... Download it now to see how easy is to display System Tray Icons and get their position using PBTray! ... ). ... It is the same product, and you get 2 products for the price of 1 (PBBalloon).
http://pablobnet.fileburst.com/PBBalloon.exe - 2Mb - Download - Screenshot

Blaze TrayAudio
A full-featured audio player that runs conveniently from the system tray and responds to hotkeys to change tracks or shuttle around your playlist. Plays MP3, CD, WAV, MIDI, WMA, AIFF, AU, and SND files. Once a playlist is setup or loaded, and play begins, Blaze TrayAudio automatically hides in... It can then be accessed with a right click or by double-clicking the icon, or can be controlled entirely using hotkeys.
http://liquidmirror.swmirror.com/setup_bta.exe - 3Mb - Download - Screenshot

Click Tray Calendar
It is a user-friendly calendar, address, and reminder program that can be accessed quickly from the Windows system tray. You can create almost unlimited notes, enter repetitive tasks, create To Do lists, and set alarms. It also has a practical fiscal week or month picture display.
http://www.freesharewarecenter.com/files/ct.exe - 3Mb - Download - Screenshot