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JS

@if (0) == (0) echo off
dir /b /a-d *.jpg| cscript -nologo -E:JScript %0
pause
exit
@end
var img=new ActiveXObject("WIA.ImageFile"),
fso = new ActiveXObject("Scripting.FileSystemObject");  
while(!WScript.StdIn.AtEndOfStream) {
    var file = WScript.StdIn.ReadLine();
    var f = fso.GetFileName(file);
    try{
         img.LoadFile(file);
         var Xdpi = Math.ceil( img.HorizontalResolution );
        if (Xdpi == 200) WSH.Echo(file);
    } catch(e) {};
}
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powershell

<# :  
@echo off
powershell -noprofile -NoLogo "iex (${%~f0} | out-string)"
pause
exit 
#>
$extlist = @('.png','.jpg')
Add-Type -Assembly System.Drawing
foreach ($file in dir -path $pwd.Path|? { $extlist -eq $_.Extension }|?{!$_.PsIsContainer}) {
  try
  {
     $img = [Drawing.Image]::FromFile( $file.fullname)
     $dpiX = $img.HorizontalResolution
     if ($dpiX -eq 200 ) {" $file.fullname  $dpiX"}
     $img.Dispose()
  } catch{}
}
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