Disable annoying caps/num/scroll lock indicators
The Widcomm Bluetooth Stack includes BTTray.exe, which is the component that adds a Bluetooth icon to the notification area.
It also has another unwanted feature: whenever the Caps, Num or Scroll lock keys are pressed, it creates an annoying pop up to tell you so! The popup has text such as CAPS LOCK ON and so on.
It can be disabled by setting the KeyIndication value within the HKEY_LOCAL_MACHINE\SOFTWARE\Widcomm\BTConfig\General registry key to 0. BTTray.exe will not notice this change until it is restarted.