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The new ATK application icon, sharp at every size.
Download
Download ATK-Player-v0.5.7-Windows.zip
- Download the ZIP.
- Extract all files.
- Open the extracted folder and double-click
ATK-Player-0.5.7-Windows-x64.msi. - Follow the setup wizard.
After installation, launch ATK Player from the Windows Start Menu or use the installer's Launch ATK Player checkbox.
The ZIP contains the Windows MSI installer, installation instructions and licence notices. It is about 130 MB because the MSI includes licence notices and matching source materials for the application and its dependencies.
What's new
- New ATK icon. The interlocking ATK logo now appears on the window, taskbar, Start Menu shortcut, project files, installer and welcome window, sharp at every size from 16 to 256 pixels.
Full notes: RELEASE_NOTES_0.5.7.md. Walkthrough: User Guide.
Upgrading
Install the 0.5.7 MSI over 0.5.6, 0.5.5, 0.5.4, 0.5.3, 0.5.2, 0.5.1, 0.5.0, 0.4.x or 0.3.0. It upgrades in place and keeps your preferences, projects and media. The project format is unchanged from 0.5.3.
Requirements
- Windows 11 x64 (the currently verified release platform)
- Microsoft Visual C++ 2015–2022 x64 Redistributable
Unsigned Build Notice
The Windows 0.5.7 MSI and executable are unsigned. Windows may show an Unknown Publisher or Microsoft Defender SmartScreen warning. Click More info → Run anyway, or right-click the MSI → Properties → tick Unblock. Verify the download against the published SHA-256 checksum.
Verify your download
In PowerShell, run this from the folder containing the downloaded ZIP:
Get-FileHash .\ATK-Player-v0.5.7-Windows.zip -Algorithm SHA256Expected ZIP SHA-256:
dcfa1517bcee143c9716fa41d6520825954c33107c666da64028bc5ed2457a39
After extracting, you can also verify the MSI:
Get-FileHash .\ATK-Player-0.5.7-Windows-x64.msi -Algorithm SHA256Expected MSI SHA-256:
31ea507b160c71c58678f27e456053934c06f722e8424045d6e8f0849a413062
Code signing policy
ATK Player is preparing to apply to SignPath Foundation. Approval and signing integration are pending; the attached Windows artifacts remain unsigned. See the Code signing policy for maintainer roles, manual release approval, and privacy information.