If the FTP link is down or difficult to navigate, you can search for the specific filename via a search engine.
: Acrobat Reader 9 is one of the last versions to support older operating systems like Windows XP and Windows Vista . acrobat reader 9 offline installer
: Adobe historically maintained an FTP repository for older software versions. While access can be intermittent, direct links to version 9.x have been shared within the Adobe Community. If the FTP link is down or difficult