Zapier - Connect the apps you use everyday to automate your work and be more productive. 1000+ apps and easy integrations - get started in minutes.
madCodeHook - "madCodeHook" offers everything you need to hook code (mostly APIs).
Workato - Experts agree - we're the leader. Forrester Research names Workato a Leader in iPaaS for Dynamic Integration. Get the report. Gartner recognizes Workato as a “Cool Vendor in Social Software and Collaboration”.
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).
ifttt - IFTTT puts the internet to work for you. Create simple connections between the products you use every day.
Microsoft Research Detours - Detours is a software package for re-routing Win32 APIs underneath applications.