powershell - Change order of columns in the object

Question

How can I change the column ordering of the output my code produces:

$apps = Import-CSV apps.csv
$computers = Import-CSV compobj.csv
foreach ($computer in $computers) {    
    $computerLob = $computer.lob
    $lobApps = $apps | ? {$_.lob -eq $computerLob }
    foreach ($app in $lobApps) {
        $computerHostname = $computer.hostname
        $appLocation = $app.location
        $installed=Test-Path "\$computerHostname$appLocation"      
        New-Object PSObject -Property @{
            Computer=$computer.hostname
            App=$app.appname
            Installed=$installed
        }
    }

Currently it's producing the columns in the following order: Installed,App,Computer.

I'd like to have it in the following order: Computer,App,Installed.

Answer 1

Powershell V3 added a type accelerator for [PSCustomObject] that creates objects using an ordered hash table, so the properties stay in the order they're declared:

[PSCustomObject] @{
  Computer=$computer.hostname
  App=$app.appname
  Installed=$installed
}