Function Name2Adr(str As String)
Dim Cts As Folder, Ct As ContactItem
Set Cts = CreateObject("Outlook.Application").GetNamespace("MAPI").GetDefaultFolder(olFolderContacts)
Set Ct = Cts.Items.Find("[Email1DisplayName] = '" & str & "'")

If Ct Is Nothing Then Name2Adr = "不明" Else Name2Adr = Ct.Email1Address

Set Cts = Nothing: Set Ct = Nothing
End Function
↑ローカルのアドレス帳から表示名を検索しメアドを返す関数です。これはうまくいくのですが、
↓下のグローバルアドレス帳を検索するものがうまくいきません。エラーメッセージは「オブジェクトはこのプロパティまたはメソッドをサポートしていません」です。
どなたか解決法をご教示ください。よろしくお願いします。
Function gName2Adr(str As String)
Dim olApplication As Outlook.Application
Dim olNameSpace As Outlook.Namespace
Dim olAddressLists As Outlook.AddressLists
Dim olAddressList As Outlook.AddressList
Dim olAddressEntries As Outlook.AddressEntries

Set olApplication = New Outlook.Application
Set olNameSpace = olApplication.Session
Set olAddressLists = olNameSpace.AddressLists
Set olAddressList = olAddressLists.Item(2)
Set olAddressEntries = olAddressList.AddressEntries

Dim olAddressEntry As Outlook.AddressEntry
Set olAddressEntry = olAddressEntries.Items.Find("[Email1DisplayName] = '" & str & "'") '←この行でエラー
If olAddressEntry Is Nothing Then gName2Adr = "不明" Else gName2Adr = olAddressEntry.Email1Address
End Function