跳转至

AllowCoverTaskbar

AllowCoverTaskbar is a sandbox setting in Sandboxie Ini available since Sandboxie Plus 1.14.2. It is disabled by default.

[DefaultBox]
BlockInterferenceControl=y
AllowCoverTaskbar=y

This setting only has an effect when BlockInterferenceControl=y. When interference control is disabled, AllowCoverTaskbar is effectively inert.

Behavior

AllowCoverTaskbar is a compatibility option for selected restrictions imposed by BlockInterferenceControl. It is not an independent taskbar-access feature and does not grant general permission to interact with the Windows taskbar.

With BlockInterferenceControl=y and AllowCoverTaskbar=n, Sandboxie may adjust selected window position, size, and z-order requests associated with taskbar coverage. Enabling AllowCoverTaskbar skips those specific adjustments for relevant intercepted operations involving CreateWindowExW, MoveWindow, and SetWindowPos.

The setting does not disable the rest of BlockInterferenceControl. Restrictions on foreground activation, the BringWindowToTop API, direct cursor repositioning, cursor confinement, and cursor hiding remain active. It also does not restore the initial WS_EX_TOPMOST style removed from intercepted window creation by BlockInterferenceControl.

The current application-window restriction logic uses the Windows primary-display work area rather than a fully per-monitor taskbar model. Do not rely on it to model every secondary-monitor taskbar, window spanning multiple monitors, or unusual shell or appbar arrangement exactly.

Runtime behavior

AllowCoverTaskbar is read when a sandboxed process initializes. Restart already-running sandboxed processes after changing the setting; newly started processes receive the new value. There is no documented per-program syntax for this setting.

Sandboxie Plus interface

The option is available at Sandbox Options > General Options > Restrictions > Other restrictions under the label Allow sandboxed windows to cover the taskbar.

The checkbox is unchecked by default and is enabled only when Prevent interference with the user interface (Experimental) is enabled. It has no dedicated tooltip.

Version history

AllowCoverTaskbar was introduced in Sandboxie Plus 1.14.2 as a compatibility option for BlockInterferenceControl. Its default remains disabled.

  • Sandboxie Ini
  • BlockInterferenceControl is the direct dependency of this setting.
  • Border Exclude Taskbar independently controls Sandboxie Plus's visual border overlay; it does not alter application-window restrictions.