PowerPoint 2003 cannot natively open .pptx files (the modern XML-based format) without a compatibility pack.
The primary allure of PowerPoint 2003 Portable was its marriage to the burgeoning popularity of USB flash drives. microsoft powerpoint 2003 portable version full
If you are determined to replicate the old-school PowerPoint 2003 feel legally, follow this guide: PowerPoint 2003 cannot natively open
Any website offering a single .exe file claiming to be "Microsoft PowerPoint 2003 Portable Version Full" is distributing unauthorized, modified software. Microsoft has never licensed a portable edition. microsoft powerpoint 2003 portable version full
Brief recommendation