Tail4win is a Windows application that monitors and displays real-time changes to files. Its focus is on log files, especially those of Apache or IIS, and it can also capture and display TRACE and OutputDebugString.

This software is perfect for system administrators and developers who need to monitor application traces quickly and easily. Tail4Win can display the last part of large files quickly without loading the entire file, and it is a file viewer only, which makes it safe to use as it makes no changes to log files.
The main features of Tail4Win are its ability to monitor changes to files and display the changed lines in real-time, its ability to monitor files of any size quickly, without having to load the entire file. The highlighting and filtering functionality allows users to focus on important information while watching multiple files at the same time.
Tail4Win also has real command-line support, just like using the Unix/Linux "tail" command, and it captures and displays OutputDebugString (Windows debugging API) output. In other words, Tail4Win is an essential tool for anyone who needs to monitor or analyze logs in real-time.
Version 4.9: Change reg code to license file. Some bug fixes and enhancements.