Because it strips away unnecessary installer packages, it occupies minimal storage space. The Reality and Technical Risks of Portable PowerPoint 2003
Carry your software and presentations on a USB drive.
Microsoft officially ended all support, security patches, and hotfixes for Office 2003 on April 8, 2014. PowerPoint 2003 contains unpatched vulnerabilities that malicious actors can exploit via compromised .ppt files. Running this software on an internet-connected PC exposes the host machine to remote code execution risks. 2. Malware and Tampering