Microsoft has finalized the second version of Windows Beta, Build 5219.

Iain McDonald, Managing Director Windows Server Group, who presented the new version of Windows Vista, said that the Beta 2 will be distributed at the Professional Developer's Conference, an event scheduled to take place this month.

The images presented by Iain McDonald were focused on the new interface Windows Vista will offer for the ALT+TAB combo and on a new function introduced by Microsoft to view all the open windows.

This is feature is already well-known by the Mac users as Mac Expose. When pressing the F9 key, all the open windows will be equally minimized and arranged on the screen so that users are able to select quickly the desired window.

The same principle applies to Windows Vista, the only difference being that the windows will be arranged one after the other, not on the entire screen as it happens with Mac OS X.

Iain McDonald also emphasized the way in which the Windows Vista icons will be a preview of the document’s first page. Regarding security, McDonald warned that although Windows Vista will be the safest OS, it doesn’t mean that it won’t have any problem at all.

The screenshots can be accessed at this address