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Blizzard Launcher

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Blizzard Launcher as of Mists of Pandaria, the last version before being retired.

Blizzard Launcher was a utility application introduced with patch 1.8.3 to ostensibly provide news links and a minimal set of pre-launch configuration options for the actual game and the patch downloader. Behind the scenes it would also theoretically provide some measure of scanning and protection from trojan viruses and third party cheat programs.

The Blizzard Launcher has been superseded with the release of the Battle.net desktop app.

Design change

Blizzard Launcher post patch 3.0.8.

With patch 3.0.8, the launcher was redesigned with a new look. Also added to the "Options" menu was a bare-essentials "Game Preferences" panel, "Downloader Preferences" panel, and a "Parental Controls" link to the "WoW Account Management" website.

Features

  • Act as a scanner and warn the user of the malicious software.
  • Provide news links about WoW and Blizzard.
  • Control the options of the Blizzard Downloader in regards to pre-patching.
  • Update the game. New in Patch 2.1
  • Options button to show options panel.
    • Minimal pre-launch game preferences.
    • Patch downloader preferences.
    • Button link to Parental Controls web page.
  • Public Test button link to PTR login web page.
  •  ? button to show web links panel.
    • Community page web link.
    • Forums page web link.
    • Blizzard Store page web link.
    • Technical Support page web link.
    • Parental Controls page web link.

Controversy

There was a bit of controversy regarding the Launcher as it was scanning the computer for malicious software, which some people believed to be an invasion of privacy.

Patch 4.0.1

Blizzard Launcher as of Patch 4.0.1.

In Patch 4.0.1, the launcher was updated to "stream" installation and patch data. The new launcher is broken up into three stages of download progress:

  • SETUP (RED): Core game, or 5% of content, is being prepared. You cannot enter the game at this time.
  • AVAILABLE (YELLOW): Base game, or 70% of content, is not completely applied. You can play, but your game experience will not be ideal. You should ideally have 1 MB/sec or better when choosing to play.
  • PLAYABLE (GREEN): Extended, or 25% of content, is almost complete. You may begin playing at this stage with few game issues. You should ideally have 1 MB/sec or better when choosing to play.

The Updater and Downloader have been integrated closely into the Launcher, resulting in less application switching when patching and installing.

The reasoning and utility of the launcher is based on the fact that, for instance, if a large raid instance is being added to the game there's no reason why the players shouldn't be allowed to access the game world and play as it downloads.

Patch 4.3.2

Verify Repair Game Data option

Patch 4.3.2 brought 2 major changes to the Launcher functions.

The first being "Repackaging Game Client Data". Pre 4.3.2, Blizzard would only repackage Data folder .MPQ files into fewer (but larger) data .MPQ files when an expansion released. With 4.3.2, Blizzard made a commitment to repackaging the Data folder more often.

The second change was the additional of "Verify/Repair Game Data". Pre 4.0.1, this feature was available via the Repair.exe file located in the main WoW folder. When Blizzard switched to the Streaming client in 4.0.1, the function of the Repair.exe file switched to repairing only the .exe, .dll and other minor files located in the main WoW folder - the only way to repair game data was to log into the game, and have the client stream non-corrupted data. This however caused lag-related complaints, and even caused issues where users would disconnect from the game due to the sheer volume of uncorrupted data needing to be streamed. With the addition of this option to the Launcher, users can once again repair their game files while not in the game.

Patch 5.0.4

In the Mists of Pandaria launcher introduced in patch 5.0.4, the last phase in patching has been renamed from "Playable" to "Optimal", and the PTR options are now under the "Options" button.

Patch changes

Original look of Blizzard Launcher.
  • MoP Patch 5.4.0 (2013-09-10): Replaced by the new Battle.net Desktop app.
  • MoP Patch 5.0.4 (2012-08-28): New Mists of Pandaria Launcher.
  • Cataclysm Patch 4.3.2 (2012-01-31): New repair option added to the Launcher.
  • Cataclysm Patch 4.0.1 (2010-10-12): New Cataclysm Launcher. It allows you to play although not all files have been downloaded (red - yellow - green state).
  • WotLK Patch 3.0.8 (2009-01-20): The "Show Launcher" checkbox has been removed; this behavior is now active by default.
  • TBC Patch 2.1.0 (2007-05-22): The launcher will now start the game automatically, unless the "Show Launcher" option on the login screen is checked.
  • WoW Icon 16x16.png Patch 1.8.3 (2005-11-15): Added.