All the registered IIS MIME types in IIS 7 + Windows Vista are registered in the following config file.

　
Code:
C:\Windows\System32\inetsrv\config\applicationHost.config
I was wondering where I can find the same file in Windows XP when I have IIS 6 installed?
Additionally, in Vista if I add a MIME type MANUALLY, it is included in a newly created [web.config] file in the corresponding directory. Where will be this particualr directory in XP?