fLogViewer 6.8 is a Windows (NT,2000,XP) program which allows one to view log text files with extended features for WC Extended Log File, CSV File or any Char Separated Value file.

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Dynamically updates the display when the file changes. Support Microsoft IIS Log File Update Mode.
Supports huge files while not using too much memory.
Supplies a simple technique to associate custom colors to each line displayed (regular expression also supported).
Exports in HTML format using the user defined colors.
Supports filtering based on regular expression, LIKE operator, VBScript plug in and WHERE CLAUSE like statment.
View remote file via an http.
Columns View Window for W3C Extended Log File Format, CSV file and any file (VBScript PlugIn Customization). See demos.
Windows Features : Mouse wheel, Tips of the day and Drag and drop.
Archive in ZIP file. Open ZIP file.
fLogViewer v 6.8 is a Freeware.

...Great freeware highlighting log viewer for large log files...
    Scott Hanselman's Ultimate Developer and Power Users Tools List

...But those of us stuck on Windows would usually prefer some sort of GUI tool. fLogViewew fits into this niche nicely. It's a MDI program wirtten in VB6, but seems to be plenty fast. Features include color-coding (done by looking for keywords in the lines of the log), the smarts to monitor log files and refresh them on the fly (even with IIS's caching scheme), and a variety of filtering and export options...
    Mike Gunderloy's NewsLettter.

Thanks for developing flogviewer, it is a great help for me. If it wouldn´t be freeware I even would pay for it. ;-)
    Jens. M.

LogViewer - Great freeware highlighting log viewer for large log files.
    Scott Galloway's Possibly the ultimate developer tools list.

Je m'étais débrouillé avec fLogViewer (freeware:http://www.flogviewer.com). Bon, il faut définir soi-même les filtres mais c'est un outil très puissant...
    Unknown

Hej! Jeg kan stærkt anbefale dette freeware program til at læse diverse logfiler med. Det kan bla. opdatere logfilerne dynamisk mens de er åbne, hvilket er super til f.eks. troubleshooting osv. :)
... Hent programmet fLogViewer her: http://www.flogviewer.com
    Peter Schmidt Since we do not speak Danish at fLogViewer.com, we hope this comment is good.