Dim moMail As New Outlook.Application
Dim moAddresses As Outlook.AddressLists

Set loNameSpace = moMail.GetNamespace("MAPI")
Set loAddresses = loNameSpace.AddressLists("Global Address List")

Set loAddressList = loAddresses.AddressEntries
lstOutlook.Clear

For liIndx = 1 To loAddressList.Count
lstOutlook.AddItem loAddressList.Item(liIndx).Name

Next

I'm assuming Outlook Express uses the Outlook object library which you'd need to add to your project "Microsoft Outlook 9.0 Object Library". In my app I have a listbox "lstOutlook" which I populate and the user can select from that who will get any mail the app may produce.

Hope this is what you were after.