Snarl - Snarl is a notification system for Windows.
SmartMedia Pro - Smartmedia Pro Classroom Management Software allows remote-control of classrooms and virtual classroom management.
Notify OSD - Canonicals on-screen-display notification agent, implementing the freedesktop.
NetSupport School - NetSupport School supports a teacher with a wealth of dedicated assessment, monitoring, collaboration and control features.
Growl for Windows - Growl for Windows is a Windows-compatible version of https://alternativeto.
DyKnow Cloud - DyKnow Cloud shows teachers how students use their time and helps teachers keep devices useful for learning.