API Monitor is a software that allows you to spy and display Win32 API calls, applications can be made. API Monitor can follow any exported APIs and display wide range of information, including name of the function, input and output parameters, calling sequences, function return value and more. A useful developer tool for seeing how win32 applications work and learn their tricks. API Monitor main features: Trace any exported APIs including Win32 APIs and other 3rd-party APIs, without having to know the prototype of the functions. Display wide range of information, including the function call name, sequence, input and output parameters, function return value of GetLastError code and more. Predefine 82 DLLs and nearly 4000 APIs' prototype. Filter profiles are a powerful way of storing your favorite monitor settings for use in other sessions. API Monitor preset 27 API Filter Profiler, including Handles and Objects, Dynamic-link libraries, event logs, pipes and mail slots, Debugging Windows Classes, COMM, Application Related, Shell, dialog boxes, file system, related services, Remote Access Service , memory management, pressurized, Windows registry, processes and threads, file IO, WinInet, Windows Sockets, Multimedia API, Windows GUI, Network Management, WinNT Security, Access Control functions. To the content displayed and exported the contents of logs can be viewed within API Monitor, and exported to another application or saved to a file. Support debug version and release version with no changes to the target application. Unicode and ANSI APIs. Monitor ongoing process-Spy APIs in a background or console process that is already running. Support multithreading. Display API calls to ActiveX controls and COM objects instanced by an application source. MS Excel style data filtering, customize, filter criteria to the data element. Automatic click-sorting against an unlimited number of columns, descending or ascending. Automatic data grouping - to sight an extremely powerful data manipulation and metaphor. Automatic runtime column selection - easily customize the columns visible on the screen with intuitive drag and drop. Instant Online MSDN Help - This feature allows you to view online MSDN context-sensitive help for the currently selected API. API Monitor limits: "Save Log to XML" Operation is disabled in this trial. disabled "Load of XML protocol" The operation in this trial. "Export Grid ..." The operation is disabled in the trial version. 15-day trial What's new in API Monitor: New: Instant Online MSDN Help - This feature allows you to view online MSDN context-sensitive help for the currently selected API. New: Add auto-scroll button if the button is pressed, the screen will always select the most recent session. Fixed: Raise exception if the grid by API Name column grouped.