madCodeHook - "madCodeHook" offers everything you need to hook code (mostly APIs).

logit.io - Logit.io provides complete observability of logs, metrics and traces. The platform also offers alerting & monitoring, as well as Prometheus, OpenSearch & Grafana. Ingest any type of data to see real-time insights about your applications and services

Microsoft Research Detours - Detours is a software package for re-routing Win32 APIs underneath applications.

CXGuardian - CXGuardian is a platform powered by QualityKiosk Technologies and allows users to monitor their mobile and web-based applications’ performance.

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).

AppOptics - Application performance management and infrastructure monitoring.