TrayStatus Pro - will shows you the status of keyboard keys like Caps Lock, Num Lock, Scroll Lock, Alt, Ctrl, and more, right in your system tray.
Features
Show Key Status
• Show the status of the Caps Lock, Num Lock, Scroll Lock, Kana, Alt, Ctrl, Shift and Win keys in your system tray.
Performance Status Indicators
• Show CPU, memory, or hard drive activity, or use performance counters to monitor things like disk queue length, network activity, IIS requests and much more.
Notifications
• Play a sound or show a tray notification when a key is toggled.
Toggle Keys
• Double-click a Status Indicator to toggle that key's lock status.
Icon Themes
• Use the built-in light or dark icon themes, or create your own custom icon themes to suit your style.
Download: 
TrayStatus Pro 5.0.rar - 22.1 MB
TrayStatus_Pro_5.0_Portable.rar - 74.7 MB