Array of custom objects in PowerShell

create a custom object in Powershell v1:

$CustomObject = @()

$obj = New-Object pscustomobject

$obj | Add-Member -property NoteProperty -name somename -value somevalue

$CustomObject += $obj

create a custom object in Powershell v2:

$CustomObject = @()

$obj = New-Object pscustomobject -Properties @{propertyname1= value1; propertyname2=value2}

$CustomObject += $obj

create a custom object in Powershell v2 (variation of method above):

$CustomObject = @()

$hash = @{

    propertyname1 = value1

    propertyname2 = value2

    propertyname3 = value3

}

$obj = New-Object pscustomobject -Properties $hash

$CustomObject += $obj