Microsoft never released an official "portable" version of PowerPoint 2003. Third-Party Origins:
It runs best on native Windows XP/Vista/7 machines. On Windows 10/11, it works but expect occasional redraw issues and missing visual themes. Microsoft PowerPoint 2003 - Portable Version
Microsoft Office PowerPoint 97-2003 Binary File Format (.ppt) Microsoft never released an official "portable" version of
You can also insert text into a shape by right-clicking a shape and selecting "Add Text". Microsoft PowerPoint 2003 - Portable Version