Phlame,

To share your printer with Windows users by using SMB/CIFS: 

  http://docs.info.apple.com/article.html?path=Mac/10.4/en/mh1770.html

 

SMB/CIFS (Server Message Block/Common Internet File System) is a common protocol also used by Windows to communicate with shared network resources.

 

If your OS X is a different version, help is available at http://www.apple.com/support/

 

Hope this helps.

 

Tony