Workbook Does Not Copy To Vba Created Folder

I am having trouble getting a copy of current workbook to save (with a hopefully unique name) into a vba created folder. The folder creates fine on any drive that I have access to, but the workbook never turns up. The code is only an extract from the whole but it still fails in isolation.

Sub Macro1()
Copyit:
Dim fso
Dim fol As String
Dim flag As String
fol = "E:Excelb4macrobackups" ' change to match the folder path
Ans5 = MsgBox("Create Backup of " & ActiveWorkbook.Name & "?" & vbCrLf & vbCrLf & " Backup File Path:" & vbCrLf & vbCrLf & fol, vbYesNoCancel + vbExclamation)
If Ans5 = vbNo Then Exit Sub
If Ans5 = vbCancel Then MsgBox "Procedure Terminated!", vbExclamation: Exit Sub.........