Yesterday we discovered that there are changes to the Australian Daylight Savings dates coming into effect this weekend (it will continue when it would normally have ended). There are lots of repercussions, but the worst (ones that could affect the business) relate to the Lotus Notes Calendar. There are two things to do to prepare ourselves; Windows Updates on our clients (WinXP) Windows Updates on our servers (Win2003) We can handle the servers ourselves but how do we know if the clients have done their updates? Simple, we ask them by sending a button around so they can determine the answers for themselves. Creating a Button that can be mailed to Notes Users Here's the LotusScript code on my button; Sub Click(Source As Button) Dim vDSTText As Variant Dim Session As New NotesSession Const CorrectDST = "10,1,1,4,1,1" vDSTText = Session.GetEnvironmentString("DSTLAW",1) If vDSTText = CorrectDST Then ...