There are safe ways to get vector-editing power without compromising your security or breaking the law. If you tell me whether you prefer free/open-source or paid tools, I can draft a short how-to for migrating CS3 files or recommend a workflow and export settings.
: Adobe decommissioned the activation servers for Creative Suite 3 (CS3) years ago. A post on the official Adobe Community forum in 2023 confirmed: "CS3の認証サーバーは停止しました。したがって、新規インストールや再アクティベーションはできません" (The CS3 authentication server has been stopped. Therefore, new installations or reactivations are not possible). adobe illustrator cs3 portable editionzip new
Portable versions of commercial software are created by users with technical expertise who modify and compress the original program files to drastically reduce their size compared to official installations. The official version of Illustrator CS3 requires a full installation process and occupies significantly more space (typically 500 MB or more). By stripping out certain components, language files, help documents, and other non-essential elements, then applying aggressive compression, portable creators can shrink the footprint to fit onto a USB drive or be downloaded quickly. There are safe ways to get vector-editing power
Perfect for running on older laptops or underpowered machines where modern software would lag. A post on the official Adobe Community forum