http://glogg.bonnefon.org/glogg is a multi-platform GUI application to browse and search through long or complex log files. It is designed with programmers and system administrators in mind. glogg can be seen as a graphical, interactive combination of grep and less.
Download installer @ http://glogg.bonnefon.org/download.html and uniextract. Application files are in $INSTDIR.
Version tested:: 0.9.0
Settings:: glogg.ini in AppData\Roaming\glogg
Also writes an empty key to the registry @ HKEY_CURRENT_USER\Software\Glogg\Glogg