I don't think it's possible to install Illustrator CS2 from a retail box CD-ROM disc. The activation servers were turned off years ago. For a limited amount of time registered CS2 users were given access to download-able installers that did not require activation. Even if someone has one of those activation-free installers it's not likely the software would work in a newer operating system such as Windows 11. I don't think CS2 even worked with Windows 10 and Microsoft is about to end support for Win 10.