Macro that makes a Excel-list/log of mails in an account/folder - email

Question

Here is my macro. I assumed that I could understand the codes and then edit it and get what I wanted
First: The macro abends whitout any progress at all: "Compile error: userdefined typenot defined"
I dont even know what this meens :)
(I use the macro now in an new and emty workbook)
Sub ListAllItemsInInbox()
Dim OLF As Outlook.MAPIFolder, CurrUser As String
Dim EmailItemCount As Integer, i As Integer, EmailCount As Integer
Application.ScreenUpdating = False
Workbooks.Add ' create a new workbook
' add headings
Cells(1, 1).Formula = "Subject"
Cells(1, 2).Formula = "Recieved"
Cells(1, 3).Formula = "Attachments"
Cells(1, 4).Formula = "Read"
With Range("A1:D1").Font
.Bold = True
.Size = 14
End With
Application.Calculation = xlCalculationManual
Set OLF = GetObject("", _
"Outlook.Application").GetNamespace("MAPI").GetDefaultFolder(olFolderInbox)
EmailItemCount = OLF.Items.Count
i = 0: EmailCount = 0
' read e-mail information
While i < EmailItemCount
i = i + 1
If i Mod 50 = 0 Then Application.StatusBar = "Reading e-mail messages " & _
Format(i / EmailItemCount, "0%") & "..."
With OLF.Items(i)
EmailCount = EmailCount + 1
Cells(EmailCount + 1, 1).Formula = .Subject
Cells(EmailCount + 1, 2).Formula = Format(.ReceivedTime, "dd.mm.yyyy hh:mm")
Cells(EmailCount + 1, 3).Formula = .Attachments.Count
Cells(EmailCount + 1, 4).Formula = Not .UnRead
End With
Wend
Application.Calculation = xlCalculationAutomatic
Set OLF = Nothing
Columns("A:D").AutoFit
Range("A2").Select
ActiveWindow.FreezePanes = True
ActiveWorkbook.Saved = True
Application.StatusBar = False
End Sub

Answer 1

As stated in the MSDN Article, which I have already provided in the comments above, you can bind with MS Outlook either by Late Binding (LB) or Early Binding (EB) from MS Excel.
Now what exactly is LB and EB? For this I would again direct you to another MSDN link.
When you are using EB, you have to set a reference to the relevant application from Tools ~~> References and set your reference to the relevant Outlook Object Library. For example
In Layman Terms, Excel now understands what Outlook and MAPIFolder is. Similarly olFolderInbox is an Outlook constant which has a value of 6. So your original code would have worked without any errors if you would have set the reference.
When you are usign LB, you do not set a reference. You declare your objects as Objects. There are analyzed by Excel during runtime. More about this has already been covered in the link above. Also since we are late binding, we have to explicitly use 6 instead of olFolderInbox as that is what it's value is.
Hope this sets you on the right track. Do ask questions if you have any.