X-Face/Face Window
"X-Face:" is an extension to the article header of Usenet posts that encodes a small 48x48 monochrome bitmap. The bitmap is shown when the article is read, and can contain anything you can fit in a 48x48 1 bit bitmap.
"Face:" is a different extension to the article header. Face uses BASE64 to encode a 48x48 PNG image. The PNG image can contain contain any color depth as long as the image is less than 725 bytes compressed. The magic number 725 is used so that the resulting base64 encoded image in the header is less than 998 characters, which is a limit imposed by some news & mail servers. See http://quimby.gnus.org/circus/face/.
In order for the Face image to be displayed, your computer must have the Microsoft dll "GDIPLUS.DLL" installed in the folder where WinVN is located, or somewhere on the Windows search path. This dll is included with Windows XP and higher.
Currently only one X-Face or Face is shown at a time. If there are multiple images in the article, only the last one is shown.