A required DLL could not be found

Updated: 4 months ago
Article ID: 135608
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Common Problems

Cannot launch the Blizzard App. A required DLL could not be found. Please download and reinstall the Blizzard app.

If you encounter this error when launching the Blizzard Battle.net Desktop App, follow these steps:

  1. Ensure you are on a supported operating system. Windows XP and Windows Vista are no longer supported for Blizzard applications.
  2. Update your drivers and operating system to resolve any compatibility issues.
  3. Check Microsoft support for Visual C++ runtime updates.
  4. Delete the Battle.net Tools folder to automatically rebuild outdated or corrupt files.
  5. Uninstalling and reinstalling the Blizzard App may resolve rare launcher issues.
  6. Missing or corrupted Windows® system files may cause this error. Use System File Checker to repair and replace system files.

Tried everything here?

If the steps above did not resolve your problem, visit our Technical Support forum or contact us.