Expiring a Workbook

beccy

Board Regular
Joined
Jul 22, 2004
Messages
116
Is it possible to put an expiry date ina workbook... i.e. using a macro?

I have a price list that i only want to be valid until a certain time period

any thoughts would be great, thanks
 

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Using Function Arguments with nested formulas
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Joe Was

MrExcel MVP
Joined
Feb 19, 2002
Messages
7,539
Private Sub Workbook_Open()
'This code go's into the "ThisWorkbook" module.
Dim myTime
myTime = Time

'If today is older than the date below run:
If Now() >= #9/20/2004# Then
MsgBox "Time is Up!"
End If

'If the time is between the times below run:
If Time >= "6:00:00 PM" And Time <= "6:35:00 PM" Then
myMsg = MsgBox(prompt:="The current System-Time is:" & _
vbCr & vbCr & " " & _
FormatDateTime(myTime, vbLongTime) & vbCr & vbCr & vbCr & _
" and, ""Today"" is:" & vbCr & vbCr & _
FormatDateTime(Date, vbLongDate) & vbCr & vbCr, Title:=Now())
End If

End Sub
 

nachiketdp

Board Regular
Joined
Jan 31, 2007
Messages
53
I have one doubt..if the computer system date is manipulated then these codes will not be effective to prohibit a client from using a macro utility beyond its expiry date..

can we make a macro to internally keep track of dates independent of the computer system date so that the macro will automatically get expired on its expiry date?
 

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