SquareCorners v1.1

Published: 3 days ago (February 7, 2026 at 06:21 PM EST)

1 min read

Source: Dev.to

Source: Dev.to

Release 1.1

Simple active .exe process that runs in the background to disable the rounded corners in Windows 11.
Includes helpful tutorials in the README for novices.

Changes

Migrated from process polling to WinEventHook for near‑zero CPU usage.
Fixed the white‑border artifact (aliasing) by forcing DWMWA_BORDER_COLOR to a neutral dark value.
Added AssemblyInfo metadata to the executable.

Usage

The process runs silently in the background and can be useful for anyone who wants to disable rounded corners without modifying system files.

Alternatives

Valinet patch – modifies Windows system files (not preferred).
Windhawk – requires installation (not desired for this purpose).

Repository

SquareCorners on GitHub

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