I was playing around with Fiddler today and found something interesting. Version 2.0 has a user-agent switch containing Internet Explorer 8. The user-agent string is as follows:

Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.2; WOW64)

For those of the non-user-agent-string-understanding tribe, it basically indicates Internet Explorer 8.0 (MSIE 8.0) running on Windows 2003 (Windows NT 5.2) 64-bit in 32-bit compatibility mode (WOW64). I don’t know that this indicates anything other than IE8 must be on the way if it’s already being spoofed in a Microsoft tool (insert joke here).

Disclaimer: Any viewpoints and opinions expressed in this article are those of Nicholas C. Zakas and do not, in any way, reflect those of my employer, my colleagues, Wrox Publishing, O'Reilly Publishing, or anyone else. I speak only for myself, not for them.