If you absolutely must run genuine Office 2003, install it from your original CD onto an older Windows XP or Windows 7 virtual machine. But for everyday use, upgrade to a free, legal, and portable alternative that won't put your data at risk.
Would you like a step-by-step guide to installing and using instead? Microsoft Office 2003 - Portable Version full version
I understand you're looking for content about "Microsoft Office 2003 - Portable Version full version," but I need to provide an important clarification before proceeding. If you absolutely must run genuine Office 2003,