I noticed there is a 64-bit version of Internet Explorer 8 shortcut on the start menu of my W7 64-bit system, and the one with the shortcut on the taskbar is 32-bit. What's the difference in this case?
64-bit IE can run 64-bit applications. It's kind of under used right now because there is noWindows version of 64-bit flash player. It should be a bit faster too.