powershell passwordlastset export to spread sheet - powershell

Question

Why is this coming up blank for all machines in the passwordlastset attribute, when I export it in the csv file? Everything else works perfectly.
$Searcher = New-ObjectSystem.DirectoryServices.DirectorySearcher([ADSI]"LDAP://dc=amers,dc=jhe,dc=domain,dc=com")
$Searcher.Filter = "(&(objectCategory=computer)(objectClass=computer)(!UserAccountControl:1.2.840.113556.1.4.803:=2)(operatingSystem=Windows XP*))"
$Searcher.PageSize = 100000
$results = $Searcher.Findall()
$results | ForEach-Object { $_.GetDirectoryEntry() } |
select #{ n = 'CN'; e = { ($_.CN) } },
#{ n = 'DistinguishedName'; e = { $_.DistinguishedName } },
#{ n = 'extensionattribute7'; e = { $_.extensionattribute7 } },
#{ n = 'LastLogon'; e = { [DateTime]::FromFileTime($_.PasswordLastSet) } },
#{ n = 'OperatingSystem'; e = { $_.OperatingSystem } } |
Export-Csv 'C:\temp\WindowsXP_Only.csv' -NoType -Force

Answer 1

By default not all properties are returned, so you need to specify the additional properties you want.
Also, if you're looking for the last logon date (per your output), you should be using lastLogonTimestamp and not PasswordLastSet.
Here's an example using Get-ADComputer, which I greatly prefer over using older methods of searching AD. Just add your Export-CSV when you're happy with the results.
$results = get-adcomputer -Filter "operatingSystem -like 'Windows XP*'" -properties cn,lastlogontimestamp,operatingsystem,extensionattribute7,PasswordLastSet -searchbase "dc=amers,dc=jhe,dc=domain,dc=com";
$results |
select #{ n = 'CN'; e = { ($_.cn) } },
#{ n = 'DistinguishedName'; e = { $_.DistinguishedName } },
#{ n = 'extensionattribute7'; e = { $_.extensionattribute7 } },
#{ n = 'LastLogon'; e = { [DateTime]::FromFileTime($_.lastLogonTimestamp) } },
#{ n = 'PasswordLastSet'; e = { [DateTime]::FromFileTime($_.PasswordLastSet) } },
#{ n = 'OperatingSystem'; e = { $_.OperatingSystem } }
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