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Creating Secure Trial Versions for .NET Applications - A Tutorial

, 16 Oct 2012 CPOL 66.9K 12.1K 219
Implement trial licensing model for your .NET applications with minimal costs
Imports System.Diagnostics

Public Class ClockManipulationDetector
    Public Shared Function DetectClockManipulation(thresholdTime As DateTime) As Boolean
        Dim adjustedThresholdTime As DateTime = New DateTime(thresholdTime.Year, thresholdTime.Month, thresholdTime.Day, 23, 59, 59)

        Dim eventLog As EventLog = New System.Diagnostics.EventLog("system")

        For Each entry As EventLogEntry In eventLog.Entries
            If (entry.TimeWritten > adjustedThresholdTime) Then
                Return True
            End If

        Return False

    End Function
End Class

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About the Author

Ansel Reynard
United States United States
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