Hello i have problem in trial version. I need script (If you Change you date Then program is closed or say msgbox. $sScript_Name = "Test" If RegRead("HKCU\Software\Microsoft\Windows\Current Version", $sScript_Name) = "" Then RegWrite("HKCU\Software\Microsoft\Windows\Current Version", $sScript_Name, "REG_SZ", _StringEncrypt(1, _NowCalc(), @ComputerName)) SetError(0) EndIf $sStartDate = _StringEncrypt(0, RegRead("HKCU\Software\Microsoft\Windows\Current Version", $sScript_Name), @Comput