diff --git a/Service.EDMIService/WindowsService.vb b/Service.EDMIService/WindowsService.vb
index efacfb70..0a6d78e8 100644
--- a/Service.EDMIService/WindowsService.vb
+++ b/Service.EDMIService/WindowsService.vb
@@ -40,6 +40,21 @@ Public Class WindowsService
 
             _LogConfig = New LogConfig(LogConfig.PathType.CustomPath, IO.Path.Combine(oServicePath, "Log"))
             _Logger = _LogConfig.GetLogger()
+
+            Try
+                Dim directory As New IO.DirectoryInfo(_LogConfig.LogDirectory)
+
+                For Each file As IO.FileInfo In directory.GetFiles
+                    If (Now - file.CreationTime).Days > 29 Then
+                        file.Delete()
+                    Else
+                        Exit For
+                    End If
+                Next
+            Catch ex As Exception
+
+            End Try
+
             _Logger.Info("Service {0} is starting...", SERVICE_DISPLAY_NAME)
             _Logger.Info("ServiceDirectory: {0}", oServicePath)
 
diff --git a/Services.ZUGFeRDService/ZUGFeRDService.vb b/Services.ZUGFeRDService/ZUGFeRDService.vb
index bce07056..70178aa2 100644
--- a/Services.ZUGFeRDService/ZUGFeRDService.vb
+++ b/Services.ZUGFeRDService/ZUGFeRDService.vb
@@ -15,6 +15,21 @@ Public Class ZUGFeRDService
         _logConfig = New LogConfig(PathType.CustomPath, Path.Combine(My.Application.Info.DirectoryPath, "Log"), Nothing, "Digital Data", "DDZUGFeRDService")
         _logConfig.Debug = True
         _logger = _logConfig.GetLogger()
+        Try
+            Dim directory As New IO.DirectoryInfo(_logConfig.LogDirectory)
+
+            For Each file As IO.FileInfo In directory.GetFiles
+                If (Now - file.CreationTime).Days > 29 Then
+                    file.Delete()
+                Else
+                    Exit For
+                End If
+
+
+            Next
+        Catch ex As Exception
+
+        End Try
         _logger.Info($"{My.Settings.SERVICE_NAME} is starting.")
 
         Dim oDataSource As String = My.Settings.DB_DATASOURCE