I am using the vb version of thePhile.
In the FillFoldersAndFilesTables() method in the browsefile.aspx for file manager, it has the following statement at about line 578 to 584

    Dim lastSlashIndex As Integer = folderPath.LastIndexOf("/")
                location = folderPath.Substring(0, lastSlashIndex)
                Response.Write("haha" & lastSlashIndex)
                Response.Write("haha1" & location)
        If location.Length = 0 Then
          location = Request.ApplicationPath.ToString()
        End If

Why we need the last 3 lines? What is the purpose to check for location.length=0?

If he can't parse out a folder name he just sets it to the main application folder.