Its a simple logger with support for output to multiple files + GUI Console Window.
<Colour ID>:<Log Filename>:<Message>
<Colour ID>::<Message>
Colour ID 0 = NO OUTPUT TO GUI CONSOLE
Colour ID 1-9 = GUI CONSOLE OUTPUT, colour is defined in extLOG.ini
"extLOG" callExtension "1:SERVER:Starting";
Output message Starting to GUI Console
Output message to logfile SERVER.log.
"extLOG" callExtension "1::Starting";
Output message Starting to GUI Console only.
"extLOG" callExtension "0:SERVER:Starting";
Output message Starting to logfile SERVER.log only.
Note you can also disable GUI Window Output via extLOG.ini file
https://github.com/Torndeco/extLOG/releases
Windows Server 2008 + Later
Windows 7 + Later
Install vcredist_x86.exe
http://www.microsoft.com/en-ie/download/details.aspx?id=40784