Hello,

Hereunder a little reminder about how to create object in all version of PowerShell :

PowerShell 1

#PowerShell v1
$Computer = "" | select Name, State, OS
$Computer.Name = "Localhost"
$Computer.State = "Unknown"
$Computer.OS = "Unknown"
$Computer

PowerShell 2

#PowerShell v2
$Computer = New-Object -TypeName PSObject -Property @{Name = "Localhost"; State = "Unknown"; OS = "Unknown"}
$Computer

PowerShell 3

#PowerShell v3
[PsCustomObject]@{Name = "Localhost"; State = "Unknown"; OS = "Unknown"}

If you look at performances :

Please upgrade to the latest PowerShell version you can if you want to have maximum performances.