The following code illustrates how to get a Files collection and iterate the collection using the For Each...Next statement:
Function ShowFolderList(folderspec)
Dim fso, f, f1, fc, s
Set fso = CreateObject("Scripting.FileSystemObject")
Set f = fso.GetFolder(folderspec)
Set fc = f.Files
For Each f1 in fc
s = s & f1.name
s = s & "<BR>"
Next
ShowFolderList = s
End Function