Blade API Monitor is a useful developer spy tool which can trace and log API and ActiveX interface with parameters. The key features are:
Trace any exported functions of any DLLs, including Windows API and any other 3rd-Part APIs, unnecessarily to know the prototype of the functions;
Trace NT Native API and undocumented APIs;
Trace MFC Class method, including MFC42 MFC80 MFC90;
Trace ActiveX controls and COM objects interfaces;
Trace internal functions code with Map (MSVC, DELPHI, C++Builder, IDA, ...) File;
Trace functions in source code with PDB (MSVC) and source files;
Log all API call information, including function name, call sequence, start time, return time, call stack, thread id, input and output parameters, function return value, GetLastError code, OutputDebugString, exception, CPU context and more;

Platform: Windows 2000, Windows XP, Windows 2003, Windows Vista

System Requirements: No special requirements