Add-Type @"
using System; using System.Runtime.InteropServices; using System.Text;
public class E {
  [DllImport("user32.dll")] public static extern bool EnumWindows(D cb, IntPtr p);
  [DllImport("user32.dll")] public static extern bool IsWindowVisible(IntPtr h);
  [DllImport("user32.dll")] public static extern int GetWindowText(IntPtr h, StringBuilder s, int n);
  [DllImport("user32.dll")] public static extern uint GetWindowThreadProcessId(IntPtr h, out uint pid);
  public delegate bool D(IntPtr h, IntPtr p);
}
"@
$rows=@()
$cb=[E+D]{ param($h,$p)
  if([E]::IsWindowVisible($h)){
    $sb=New-Object System.Text.StringBuilder 256
    [void][E]::GetWindowText($h,$sb,256)
    $t=$sb.ToString()
    $wp=0; [void][E]::GetWindowThreadProcessId($h,[ref]$wp)
    $pn=""; try{$pn=(Get-Process -Id $wp -EA Stop).ProcessName}catch{}
    $script:rows+=[pscustomobject]@{Hwnd=[long]$h;Ppid=$wp;Proc=$pn;Title=$t}
  }; return $true
}
[void][E]::EnumWindows($cb,[IntPtr]::Zero)
$rows | Where-Object {$_.Proc -like "*btl4*"} | Format-Table -Auto | Out-String | Write-Host