I looked around on MSDN and found a link to "Internet Information Services 6.0 Previous Versions".

http://www.microsoft.com/windowsserver2003/iis/evaluation/overview/previous.mspx#XSLTfullModule121121120120

I selected IIS 5.0 and it took me to a Windows 2000 page. So, it's looking like it's not for XP.

>I recently read that the web server software, IIS 5.1, bundled with XP Pro was a diluted, and hence, inferior product than its predecessor, IIS 5.0.
>
>I would like to uninstall IIS 5.1 from my XP Pro machine and install IIS 5.0. I have both Windows 2000 Pro and Windows 2000 server, both of which have IIS 5.0. However, I am not sure if I am able to install it from these CDs, because when I put them in the XP CD drive, I get the message "The Windows CD you inserted contains an older version of Windows ....", etc.
>
>Does anyone know of a way I can get IIS 5.0 installed on my XP Pro box?
>
>Thanks,
>
>-Steve K