All-In-One Protector 8

All-In-One Protector comes with an inbuilt protection for PowerPoint files - see PowerPoint

What is the difference between All-In-One Protector and the Microsoft IRM (Information Rights Management) system in Office 2007?

The IRM system in Office 2007 allows to specify security options per user. You need a server to handle the user information and each user must install the IRM Client on his PC. This is typically a possible approach to protect a document inside the own company. If the document should be distributed, the restrictions to have a connection to the IRM server and to install the IRM client should be considered. All-In-One Protector protects PPT files without the need to install an additional software or to have an Internet connection.