$ChildDirectories = Get-ChildItem -Directory -Path "." #Gets all Applications Sub Folders
foreach($Directory in $ChildDirectories) { #Loops through each Applications Sub Folder
    $Files = $Directory.GetFiles() #Gets all files within each Applications Sub Folder
    foreach($File in $Files) { #Loops through each file within each Applications Sub Folder
        if($File.Name -eq "SuperLTI.exe") { #If a sub directory within an Applications Sub Folder contains SuperLTI.exe
            Copy-Item -Path "SuperLTI.exe" -Destination $Directory #Replace it with a copy at Applications root.
        }
    }
}