Windows Vienna

Windows Vienna is the 2nd codename of Windows 7 from 2005-2008, after Windows Blackcomb. Similarly (to the Longhorn project, which its development reset), development of the original version of the project was reset in October 2005, then the codebase reverted essentially to XP.
==Builds==
===Build 4700 and 4701===
Build 4700, compiled on November 2, 2005. This build is just XP, but it says '5.10.4700' in the About Box. The next was Build 4701 and was compiled on November 8, 2005. Screenshots have been leaked, but the version number was changed to '6.10.4701', which is more accurate to Blackcomb's version number.
===Build 4782===
Compiled on December 11, 2005. This build features Server 2003 R2's structure.
===Build 5199===
Compiled on January 7, 2006. By this time, the reset was fully complete, and the build was using the Vista-style Aero UI, as is seen in Vista build 5219 (originally had the XP-style 'start' button, but it's Aero)
===Build 5286===
Compiled on January 22, 2006. The start button changed to an orb. The IE version is called Internet Explorer 7+.
===Build 5363 (Beta 1/Milestone 3)===
Compiled on February 7, 2006, and leaked on November 9, 2006.
===Build 5402 (CTP)===
Compiled on April 8, 2006, and became part of the May 2006 Community Technology Preview.
===Build 5477 (Milestone 4)===
Compiled on April 26, 2006. Only available in the Home basic SKU.
===Build 5502 (Beta 2)===
Compiled on May 18, 2006. Similar to Windows Vista build 5384.4.
===Build 5532===
Compiled on June 2, 2006, and leaked on June 24, 2006. It is similar to Windows Vista Build 5456.
===Build 5548 (Milestone 5)===
Compiled on July 12, 2006, and leaked on July 17, 2006. It is similar to Windows Vista Build 5472.
===Build 5564===
Compiled on August 7, 2006, and leaked on August 24, 2006. It is similar to Windows Vista Build 5536.
===Build 5600 (Milestone 6/Beta 3)===
Compiled on August 29, 2006. It is similar to Windows Vista Build 5600.
===Build 5744===
Compiled on October 3, 2006. It is similar to Windows Vista Build 5744.
===Build 5840 (Milestone 7)===
Compiled on November 2, 2006. It is similar to Windows Vista 6000.16386.
===Build 5876===
Compiled on January 22, 2007. Similar to Windows Vista.
===Build 5934 (Release Candidate 1)===
This is the last Vienna built a system that worked on 32-bit machines. Compiled on March 23, 2007. Similar to Windows Vista.
=== Build 5961 ===
This build brought a new feature called "Experience Rate" but was removed by build 5990. Compiled on April 4, 2007.
=== Build 5990 ===
This build removed the "Experience Rate" app but did introduce a new fish wallpaper. Compiled on April 7, 2007.
=== Build 6076 (Release Candidate 2) ===
Compiled on April 12, 2007, and leaked on October 7, 2007.
=== Build 6115 ===
Compiled on April 15, 2007, and leaked on December 27, 2007.
=== Build 6150 ===
Compiled on April 16, 2007, and leaked on March 23, 2008.
=== Build 6210 ===
Compiled on April 30, 2007, and leaked on May 23, 2008.
=== Build 6367 ===
Compiled on May 1, 2007, and leaked on June 14, 2008.
=== Build 6389 ===
Compiled on May 4, 2007, and leaked on July 15, 2008.
=== Build 6399 ===
Compiled on May 13, 2007, and leaked on August 8, 2008.
=== Builds 6400-6910 (Windows 7 builds) ===
All of these builds look virtually similar to each other but with newer features. They were all compiled between May 14, 2007, to September 15, 2008. 
=== Build 6922 ===
Compiled on October 3, 2008, and the first to remove the codename in favor of the official name Windows 7. 
== Windows Vienna XP ==
Windows Vienna XP is an unofficial version of Windows Vienna. Released on January 9, 2009, this version has the Windows XP desktop, Aero theme, and updated boot screen.
Category:Fictional Windows versions