Hoo WinTail 

Hoo WinTail is a real-time log monitor for Windows like the UNIX tail -f utility. It can capture and display OutputDebugString (Windows Debug API) and TRACE (MS Visual C++ Debug Macro) output as well.
hoo wintail windows tail tail -f file viewer debug tool log monitor monitor log log utility log tool log viewer outputdebugstring

Tail4Win 

Tail4Win is used to monitor changes to files and display the changed lines in realtime. It is very usefull for monitoring log files of applications - e.g. Apache's logs or IIS's logs. It can capture and display OutputDebugString / TRACE.
tail windows tail unix tail tailing