Microsoft never released an official "portable" version of PowerPoint 2003. Third-Party Origins:
You are running a 16-bit installer (unlikely for Office 2003) or missing dependencies. Solution: Install the Visual C++ 2005 Redistributable and ensure you are using a 32-bit compatible PC (Office 2003 will not run on 64-bit only ARM systems like Surface Pro X). Microsoft PowerPoint 2003 - Portable Version
Alex carried his secret weapon on a lanyard around his neck: a 128MB Lexar JumpDrive. Inside, nestled among spreadsheets, was a "Portable" version of Microsoft PowerPoint 2003 Microsoft never released an official "portable" version of