Office 2007 build 3820

Microsoft Office 2007 build 3820 is the official Beta 1 Technical Refresh build of Microsoft Office 2007. It was compiled on 20 February 2006, before being released to beta testers on 16 March 2006. It was leaked onto the Internet Archive on October 9th, 2022 by a user named "VertoKomo".

Branding
This is the first build to use the Microsoft Office 2007 branding. The previous Office 12 branding is still used for the Start menu shortcuts.

Welcome dialog
Upon first launch, a new welcome dialog will appear. It asks if the user wants to enable several online related services.

Ribbon UI

 * Introduced the Ribbon UI, which would be used in the final product.
 * Color schemes can now be changed, with the two options being Luna and Obsidian.
 * If installed on Windows XP, Luna will be the default color scheme.
 * If installed on Windows Vista, Obsidian will be the default color scheme.
 * "File" has been redesigned into the Office button.
 * The Quick Access Toolbar has been moved to the title bar.
 * Items are no longer centered if the large Quick Access Toolbar is enabled.
 * The scroll-wheel can now be used to quickly switch between Ribbon tabs.
 * The animation for switching between Ribbon tabs has been removed.
 * The Options dialog has been updated with a similar new design.
 * Outlook now uses the Ribbon UI in several pop-up dialogs, such as composing emails.

Charts
New chart drop-downs have been added to the Ribbon in Excel.

Menu bars
The "Always show full menu bar" option is now enabled by default for applications without the Ribbon.

Themes
New built-in themes have been added.

Office Help
Office Help is now functional in this build, albeit with less offline articles as the final.

Aero
Title bars for Ribbon applications will not be rendered correctly if Aero is enabled.