|Microsoft's reason for requiring installation of Powerpoinv Viewer 2010 instead of a standalone program:|
"We’ve received a number of questions about why the PowerPoint 2010 Viewer requires installation, rather than being a no-installation .EXE that can be burned to CDs. Our number one goal is to keep your computers safe and secure; the only way for us to ensure that the PowerPoint Viewer is always up-to-date and secure is by requiring installation, which enables the application to receive future security updates."
It is annoying to install a program for a quick need, so I understand you're desire for a portable version. If your Office 2002 suite includes a copy of Powerpoint, installing Powerpoint Viewer 2010 will likely change the file-type association of .ppt files so the Viewer program opens by default instead of Powerpoint 2002. There are a handful of ways to adjust file-type association, so ask if you don't know how.
You could also try "installing" OpenOffice.org Portable. http://portableapps.com/apps/office...
The presentation function within may open and display the powerpoint properly, but compatibility between the two isn't always perfect.
All you need to download is this specific portable application, not the whole Portable Apps program. When you open the downloaded .paf file, open it up and set the "installation" folder to your desktop or wherever. It'll extract the program there and then you can delete the folder as a whole to "uninstall" it like any portable program.
Since Open Office is a whole program rather than a program suite, you need to download the whole 92 MB file instead of a much smaller file for your specific purpose.
Apologies if I don't respond to your reply immediately. I don't check this site daily, but you're welcome to PM me as a reminder.