Error en Script de Backup

Buenas tardes, tengo la presente pregunta, he creado un SCRIPT en VBS que
me
crea la siguiente linea para la ejecucion del Backup en el servidor:

'''''''''''''''''''''''''''
' Script Backup Server-02
' Carlos A. Lozano G.
' Ene-28-2004
'''''''''''''''''''''''''''
Option Explicit

Dim objShell, objFSO
Dim strDay, strMonth, strYear
Dim strDescritption, strBackup, strLogFile
Dim bksPath, bkfPath, bksFile, bkfFile, bksDate, bkfDate

Set objFSO = CreateObject("Scripting.FileSystemObject")
Set objShell = CreateObject("Wscript.Shell")

if Day(Now) < 10 then
strDay = "0" & Day(Now)
else
strDay = Day(Now)
end if

if Month(Now) < 10 then
strMonth = "0" & Month(Now)
else
strMonth = Month(Now)
end if
strYear = Year(Now)

bksDate = Mid(strYear, 3) & strMonth & strDay
bkfDate = strMonth & "/" & strDay & "/" &strYear

bksPath = "C:\Backup\"
bkfPath = "F:\"
bksFile = bksPath & "Server-02.bks"
bkfFile = bkfPath & "Backup Suani " & bksDate & ".bkf"
strDescritption = "Set created " & bkfDate & " at " & Time

strBackup = "ntbackup backup ""@" & bksFile & """ /a /d """ &
strDescritption & """ /v:yes /r:no /rs:no /hc:off /m incremental /l:s /f
"""
& bkfFile & """"
msgBox(strBackup)

' perform backup
objShell.Run strBackup, 1, true

' cleanup
Set objFSO = Nothing
Set objShell = Nothing

Ha funcionado perfectamente hasta el 21 de Diciembre, a partir de ese día
empezo a generar el siguiente error, que encontre en el visor de sucesos

NTBackup error: 'The saved selection file ""@C:\Backup\Server-02.bks"
cannot
be found.'



A que se puede deber esto?



Gracias

Carlos Andrés Lozano
Solution Development
Suani BSM Network