Since this title is "abandonware" and no longer available on major digital storefronts like the Epic Games Store or GOG, users typically find it through community-driven archives:
To make the 2006 title playable on modern systems, community patches are highly recommended to fix licensing and add current rosters: world-soccer-winning-eleven-9-pc-game-free-download
: Download custom save files from GameFAQs to quickly fix team names and kits without installing a full overhaul mod. Since this title is "abandonware" and no longer
: You can find the full PC game disc or a playable demo hosted for preservation. world-soccer-winning-eleven-9-pc-game-free-download
The PC version is best played with a gamepad, though it supports keyboard inputs. World Soccer Winning Eleven 9 - Master League Guide - PC