Setting up Winboard engines to run in Internet Chess Servers like Freechess.org [formerly known as FICS or Free Internet Chess server], or Internet Chess Club [ICC] is possible with the use of zippy that comes with the Winboard package.Another possible and perhaps easier way is to use the new Arena , that comes with ICS support.
However it is not possible to set up Winboard Chess engines to run in YahooChess servers using normal Winboard compatible interfaces.This is because YahooChess is based on a java applet, and zippy does not work in that. In fact,this holds for most Chess servers besides FICS/ICC/Chessnet and perhaps USCL which share similar code.
There is however a project known as YICS (YaY)Ultimate edition that makes it possible to 'possible to use ICS-compatible interfaces (such as xboard, WinBoard, eboard, and Thief) on Yahoo! Chess.' .This opens the possibility of using engines that use these interfaces.
----------------------------Using Winboard + Zippy--------------------
To use zippy with Winboard, you will have to alter the windows shortcut(or do it in dos mode).
Right click on the Winboard shortcut on the desktop and select properties
In "target" you should see something like C:\WinBoard\winboard.exe
Your Path might be different depending on where you placed Winboard.
Add this line c:\winboard\winboard.exe /zp /ics /icshost=freechess.org /icshelper=timeseal /fcp=enginename.exe /fd=c:\enginedirectory in the target box in one line.You can ignore the colors for now.
Explanation
The first part in black is to tell Winboard to start in ICS mode.Of course the path to Winboard.exe on your computer might vary. It could be c:\program files\Winboard\Winboard.exe \zp \ics instead for example.
/icshost=freechess.org /icshelper=timeseal - Add the server address after /icshost.(E.g. chessclub.com for ICC or server.uschesslive.org for USCL). /icshelper is for the use of timeseal.
/fcp=enginename.exe /fd=c:\enginedirectory - Change enginename to the file name of your engine (the file ending in exe) and c:\enginedirectory to the directory where enginename.exe is in.
Start Winboard through the shortcut and it will run normally. You will need to enter the handle name, password, normally.
-More info about this topic click its link
http://www.horizonchess.com/FAQ/Winboard/Winboard2.html