кстати, тут искали лог вьювер под винду
вот попалось на глаза
http://www.uvviewsoft.com/logviewer/

Fast scrolling, eats low memory
Supports any file size (4 Gb and larger)
Multitabbed interface
Log auto-refreshing
"Follow tail" mode
Highlighting of lines matching a RegEx
Support for lot of encodings: ANSI, OEM, UTF-8, Unicode LE/BE etc.
File search (both forward and backward)
File printing
Line wrapping, configurable tab size and line spacing
Line numbers (for log beginning)
"Create filtered log" command
Unicode filenames support
and more.