Windows Vista build 5212 (winmain)

Windows Vista build 5212 (winmain) is a pre-Beta 2 build of Windows Vista. This build was uploaded to BetaArchive's FTP server on 19 December 2016.

Editions and keys
This is the earliest available post-reset build of Windows Vista to include SKUs other than Professional, which itself has been split into "Professional Standard" and "Professional Enterprise". The Home Edition has been split into "Home Basic" and "Home Premium". This is also the first build to include the Ultimate SKU.

Setup
Although setup is similar to aforementioned builds of Vista, the autorun prompt upon booting into setup now fits more perfectly on the screen and is positioned correctly. Fonts used in the first page of setup also now use ClearType functionality once again.

This build introduces an option that allows the user to update the installation media, which was previously known in Windows XP as "Dynamic Update".

User interface

 * The watermark now states Beta 2 rather than Beta 1.
 * The Avalon/Indigo and supplemental drivers shortcuts have been removed. These however will remain when upgrading from build 5112.

Flip3D
This is the first available build to introduce what was known as Flip3D. It contains similar functionality to Alt, however it now utilizes the Desktop Window Manager in this build and creates a 3D flipping effect in between all of the applications currently open, thus the name "Flip3D". Flip3D can be used via pressing ⊞ Win, rather than ⊞ Win which was used in later builds.

AutoPlay
AutoPlay now has more functions compared to build 5112. For example, there is now a checkbox, which invokes, that this option should always been done for this type of media. Additionally, at the bottom, a link has been added, which redirects to the AutoPlay settings.

Windows Sidebar
This build is the first post-reset build of Windows Vista to reintroduce Windows Sidebar. Rather than working inside explorer.exe (which caused memory leaks), this time the Sidebar runs in its own process. In this build, the Sidebar doesn't start automatically upon booting up.

Gadgets are mentioned as "Parts" inside the user folder. There are four gadgets: Clock, RSS Feed, Photo Slideshow and Search.

Windows Media Center
Windows Media Center and its services have been introduced in this build's Home Premium and Ultimate SKUs, and it features a drastically different look compared to the one featured in Windows XP Media Center Edition 2005, but it still identifies the OS as such in the About page. It is also included on the taskbar by default.

Windows Photo Library
This build also includes the earliest version of Windows Photo Gallery, called Windows Photo Library (it's based on Microsoft Digital Image Library).

Windows Calendar
Windows Calendar has been added in this build.

Windows Help and Support

 * Working offline option has been added.
 * Minimal user interface updates have happened such as new arrow buttons.

Tablet PC Components
This build includes Windows Tablet PC components (Sticky Notes, InkBall and Windows Journal apps; Tablet Settings and Pen Properties Control Panel applets; Pen Service). In addition, the Flicks Introduction Wizard and Pen Flick Gestures tray menu has been added.

Miscellaneous

 * Speech Recognition applet has been added to Control Panel.
 * "Notes" folder has been added to the Documents folder which contains .jnt files (regarding Windows Journal).
 * Castle service has been re-added from build 5098.
 * Windows Color System Service has been added.

Sidebar

 * If launching the Sidebar process and then terminating it, the watermark may not position itself correctly.
 * If recycling something or adding something to the recycle bin, the icons won't change unless you log out and log back in.

Windows Calendar
Windows Calendar is mostly not functional.

Migration Wizard
The following bugs are internal known issues found in  in the sources folder.


 * Currently, only disconnected migration is supported.
 * The Drive Exclusion page has no effect on the items to be migrated.
 * To increase performance on machines with razzle environments, you can have the docs agent skip scanning all drives (which can take several minutes on some machines) by setting the environment variable  before running the wizard.