function New-Password {
  [cmdletBinding()]
  param
  (
    [String]
    [ValidateRange(3,256)]
    [Parameter()]
    $Length = 12,

    [ValidateSet('Complex','Numbers','Specials','LowerCaseLetters','UpperCaseLetters')]
    [String[]]
    $type = 'Complex'
  )

  $Specials = ( 33..45 ) + ( 58..64 ) + ( 91..95 )
  $Numbers = ( 48..57 ) 
  $UpperCaseLetters = 65..90
  $LowerCaseLetters = 97.. 122
  
  Switch ( $Type )
      {
      'Complex'          { $Charset = $UpperCaseLetters + $LowerCaseLetters + $Numbers + $Specials; break }
      'UpperCaseLetters' { $Charset += $UpperCaseLetters }
      'LowerCaseLetters' { $Charset += $LowerCaseLetters }
      'Numbers'          { $Charset += $Numbers }
      'Specials'         { $Charset += $Specials }
      }
  Write-Verbose "$Charset"
  
  While ((( $UpperInserted + $LowerInserted + $SpecialsInserted + $NumbersInserted -lt 3 ) -and ( $type -eq 'Complex' )) -or (( $type -ne 'Complex' ) -and ( $UpperInserted + $LowerInserted + $SpecialsInserted + $NumbersInserted -lt 1 )))
  {
    $UpperCount = 0
    $LowerCount = 0
    $SpecialsCount = 0
    $numbersCount = 0
    $UpperInserted = 0
    $LowerInserted = 0
    $SpecialsInserted = 0
    $NumbersInserted = 0
    [string]$Password = ''
    
    For ( $i=1; $i -le $Length; $i++ )
    {   
      $RandomChar = (Get-Random -InputObject $CharSet)
      Switch ( $RandomChar )
      {
        { $RandomChar -in $UpperCaseLetters }  { $UpperCount++; $UpperInserted = 1 }
        { $RandomChar -in $LowerCaseLetters } { $LowerCount++; $LowerInserted = 1 }
        { $RandomChar -in $Specials } { $SpecialsCount++; $SpecialsInserted = 1 }
        { $RandomChar -in $Numbers } { $NumbersCount++; $NumbersInserted = 1 }          
      }
      [string]$Password += [char[]]$RandomChar
    }
  }
  $Password
  Write-Verbose "UpperCaseCount: $UpperCount"
  Write-Verbose "LowerCaseCount: $LowerCount"
  Write-Verbose "Specials: $SpecialsCount"
  Write-Verbose "Numbers: $numbersCount"
}