vbs awake code

Dim objShell, lngMinutes, boolValid

Set objShell = CreateObject("WScript.Shell")

lngMinutes = InputBox("How long you want to keep your system awake?" & Replace(Space(5), " ", vbNewLine) & "Enter minutes", "Awake Duration")

If lngMinutes = vbEmpty Then
		' Do Nothing
Else
		On Error Resume Next
		Err.Clear
		boolValid = False
		lngMinutes = CLng(lngMinutes)
		If Err.Number = 0 Then
				If lngMinutes > 0 Then
						For i = 1 to lngMinutes
								WScript.Sleep 60000
								objShell.SendKeys "{SCROLLLOCK2}"
						Next
						boolValid = True
						MsgBox "Forced awake time over. Back to normal routine.", vbOKOnly+vbInformation, "Task Completed"
				End If
		End If
		On Error Goto 0
		If boolValid = False Then
				MsgBox "Incorrect input, script won't run" & vbNewLine & "You can only enter a numeric value greater than zero", vbOKOnly+vbCritical, "Task Failed"
		End If
End If

Set objShell = Nothing
Wscript.Quit 0