$Win32ShowWindowAsync = @{
    Namespace = "Win32Functions"
    Name = "Win32ShowWindowAsync"
    Language = "CSharp"
    MemberDefinition = @"
        [DllImport("user32.dll")]
        public static extern bool ShowWindowAsync(IntPtr hWnd, int nCmdShow);
"@
}
IF (-not ("Win32Functions.Win32ShowWindowAsync" -as [type]))
{
    Add-Type @Win32ShowWindowAsync
}
$title = "*PowerShell*"
Get-Process | Where-Object -FilterScript {$_.MainWindowHandle -ne 0} | ForEach-Object -Process {
    IF ($_.MainWindowTitle -like $title)
    {
        [Win32Functions.Win32ShowWindowAsync]::ShowWindowAsync($_.MainWindowHandle, 6) | Out-Null
    }
}