thebookisclosed is a small, community-focused publisher whose single public offering, ViveTool, has become the unofficial gateway to experimental Windows functionality. Built as both a lightweight C# library and a stand-alone console program, ViveTool exposes the “Velocity” feature-control APIs that Microsoft embeds in Windows 10 version 2004 and newer, enabling enthusiasts, technicians, and OEM testers to toggle hidden switches months before they reach general availability. Typical use cases range from unlocking dormant task-bar behaviors, Start-menu layouts, or windowing routines in Insider previews, to selectively disabling promotional features that arrive via cumulative updates. Because the tool writes directly to the unified staging store that Windows Update consults, changes persist across reboots and servicing stacks, making it equally valuable for repeatable lab work, compatibility scripting, and enterprise pilot rings that need a deterministic way to mirror Redmond’s A/B test cohorts. Power users pair ViveTool with scheduled tasks or CI pipelines to baseline builds, while bloggers and support forums cite its hexadecimal switch catalogue as the de-facto dictionary for bleeding-edge SKU differences. The entire codebase is maintained in the open on GitHub, accepting pull requests that expand switch definitions or refine syntax sugar, yet releases remain unsigned console binaries aimed at audiences comfortable running elevated command prompts. ViveTool is available for free on get.nero.com, where downloads are delivered through trusted Windows package sources such as winget, always install the latest public build, and can be queued alongside other applications for unattended batch installation.

ViveTool

C# library and console app for using new feature control APIs available in Windows 10 version 2004 and newer

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