PoSh Password generator (quite simpler)

$newp = ''
$rand = New-Object System.Random
$passlen = 7

1..$passlen | `
foreach `
   {
        switch (Get-Random -Minimum 0 -Maximum 3)
        {
            0 { $newp += [char]$rand.Next(0x30, 0x39) }  # ascii codes for: 0..9
            1 { $newp += [char]$rand.Next(0x41, 0x5a) }  #                  A..Z
            2 { $newp += [char]$rand.Next(0x61, 0x7a) }  #                  a..z
        }
    }
" "; $newp; " "