Netumo - Ensure healthy website performance, uptime, and free from vulnerabilities. Automatic checks for SSL Certificates, domains and monitor issues with your websites all from one console and get instant notifications on any issues.

Winspector Spy - Have you ever used Spy++ that comes with MSVC?

AppZero - AppZero is a monitoring and migration tool that allows users to keep track of different applications and servers in both simple and complex IT environments.

Window Detective - Window Detective is a programmer's tool used to "spy" on an application's windows...

RedGate SQL Monitor - SQL Monitor helps you and your team find issues – before they become problems

WinSpy - Retrieve window information.