API Monitor - API Monitor is a software that monitors and displays API calls made by applications and services. Its a powerful tool for seeing how Windows and other applications work or tracking down problems that you have in your own applications
Widgeridoo - Custom and pre-made widgets for iOS and macOS
Deviare API Hook - Deviare is a professional open source hooking engine for instrumenting arbitrary Win32 functions, COM objects, and functions which symbols are located in program databases (PDBs).
Glimpse - Discover trends before they're trending
Microsoft Research Detours - Detours is a software package for re-routing Win32 APIs underneath applications.
Widget Web - Widget Web is a handy application that allows you to view the content of web pages in a widget on your iOS device’s home screen.