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;

Support debug version and release version with no modifications to the target application; Support Unicode and ANSI application;

Support multi-thread;

Presets 27 API Filter Profiles, including Handles and Objects, Dynamic-Link Libraries, Event Log, Pipes and Mailslots, Debugging, Windows Classes, COMM, Application Related, Shell, Dialog Boxes, File System, Services Related, Remote Access Service, Memory Management, Print Related, Windows, Registry, Processes and Threads, File IO, WinInet, Windows Sockets, Multimedia API, Windows GUI, Network Management, WinNT Security, Access Control Functions;

Easily generate PDB files without source code;

Support Script Macro;

Predefine 8000 APIs’ prototype.

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;

Support debug version and release version with no modifications to the target application; Support Unicode and ANSI application;

Support multi-thread;

Presets 27 API Filter Profiles, including Handles and Objects, Dynamic-Link Libraries, Event Log, Pipes and Mailslots, Debugging, Windows Classes, COMM, Application Related, Shell, Dialog Boxes, File System, Services Related, Remote Access Service, Memory Management, Print Related, Windows, Registry, Processes and Threads, File IO, WinInet, Windows Sockets, Multimedia API, Windows GUI, Network Management, WinNT Security, Access Control Functions;

Easily generate PDB files without source code;

Support Script Macro;

Predefine 8000 APIs’ prototype.

By using Tail4Win system administrator can monitor log files of server applications in real-time, e.g. Apache’s error.log and access.log, or IIS, Tomcat, Resin log files. And programmer can monitor application traces easy and quickly.

Tail4win can display the last part of a large file quickly without loading the entire file. And it is a file viewer only, it makes no changes to log files.

Main fetures:

Monitor changes to files and display the changed lines in realtime.
Monitor files of any size quickly, no need to load the entire file.
Highlighting and filtering let you focus on important informations.
Watch multiple files at same time.
Real command line support, just like using Unix/Linux "tail" command.
Capture and display OutputDebugString (Windows debugging API) output.