Hide an application from the taskbar

Hide an application (notepad in this case) from task bar using PowerShell

	$code = @"
	[DllImport("user32.dll", SetLastError = true)]
	public static extern int GetWindowLong(IntPtr hWnd, int nIndex);
	[DllImport("user32.dll")]
	public static extern int SetWindowLong(IntPtr hWnd, int nIndex, int dwNewLong);
	[DllImport("user32.dll")]
	public static extern bool ShowWindow(IntPtr hWnd, int nCmdShow);
	"@
	Add-Type -MemberDefinition $code -Name Win32Util -Namespace System
	$WS_VISIBLE = 0x10000000
	$WS_EX_TOOLWINDOW = 0x00000080
	$WS_EX_APPWINDOW = 0x00040000
	$SW_HIDE = 0
	$SW_SHOW = 5
	$MainWindowHandle = (Get-Process -Name notepad)[0].MainWindowHandle
	$style = [System.Win32Util]::GetWindowLong($MainWindowHandle,$GWL_STYLE)
	$style = $style -band ( -bNOT ($WS_VISIBLE))
	$style = $style -bor $WS_EX_TOOLWINDOW
	$style = $style -band ( -bNOT ($WS_EX_APPWINDOW))
	[System.Win32Util]::ShowWindow($MainWindowHandle, $SW_HIDE)
	[System.Win32Util]::SetWindowLong($MainWindowHandle,$GWL_STYLE, $style)
	[System.Win32Util]::ShowWindow($MainWindowHandle, $SW_SHOW)
	[System.Win32Util]::ShowWindow($MainWindowHandle, $SW_HIDE)

view raw hidefromtaskbar.ps1 hosted with ❤ by GitHub

Reference(s):
http://stackoverflow.com/questions/7219063/win32-how-to-hide-3rd-party-windows-in-taskbar-by-hwnd