Forum Moderators: phranque
Do you mean the little icon that replaces the IE "blue E" symbol in the Address bar?
If so, that is a "favicon". You can add one to your site by creating an icon file (NB it must be a proper icon, not just a bitmap renamed), call it favicon.ico and upload it to the root of your domain. I think it works for IE 5+
To create the icon files you will need a proper icon generator. I know there are a few free ones, and I've seen on-line ones too. IconForge is a free one (I think) which I've heard good things about, but one of the graphics gurus would be better qualified to provide links etc.
I know there have been threads about this topic, but I don't have them readily to hand. Anyone else help?
<aside>If someone can track the thread down, maybe it should go in the Library?</aside>
edit: 2 typos, added some text
To do it without action on their part would take some kind of scripting, I'd imagine. I once had my Windows wallpaper replaced without my knowledge at a font site. I was told that it was a hostile Active-X, which I know nothing about. But I wan't very happy about it happening, I had a hard time getting rid of it.