Trust Settings for Microsoft Office 2007 - Office button
In a guest post, a TechRepublic member provided steps for uncovering a ton of Easter eggs by combining Microsoft Office 2007 with 2010. Here are the screenshots that walk you through the installation procedure. Be sure to read the post for the entire step-by-step process.
After you've installed Microsoft Office 2007, you must install the Creative Commons Primary Interop Assemblies (PIA). In order for this to work, you must open Word, Excel, and PowerPoint 2007 in Trust Settings (Word must be opened first). Begin by clicking the Office button.