function FindLatestBackupFile([String]$backupPath, [String]$BackupFilePattern, [String]$ExcludeFilePattern)
{

    $LastBackup = dir $backupPath | Where-Object {!$_.PSIsContainer} | Where-Object {$_.name -like "*" +$BackupFilePattern+ "*.bak"} | Where-Object{ $_.name -notlike "*" + $ExcludeFilePattern+ "*.bak" }|  Sort-Object {$_.LastWriteTime} -Descending | Select-Object -First 1
    $LatestBackupFilePath = $LastBackup.FullName
    return $LatestBackupFilePath
}



$backupPath = "E:\temp"
$BackupFilePattern = "Discovery"
$ExcludeFilePattern = "log"

FindLatestBackupFile $backupFile  $BackupFilePattern  $ErrorView