I have never ever planned back to shareware business, but one of my technical tasks requests testing of modern software protection and integration with billing services. So I've decided to make a small utility and push it to all required tests.
Software for Windows, offers two Caps Lock state indicators: Tray Icon and On-Screen Floating Text. Notifications by sound are also available. The product is distributed as shareware with 30-day trial period. The license costs $9.95 per user.