diff --git a/DriveInfo/MDiMain.vb b/DriveInfo/MDiMain.vb
index 7343208..65defdf 100644
--- a/DriveInfo/MDiMain.vb
+++ b/DriveInfo/MDiMain.vb
@@ -114,6 +114,8 @@ Public Class MDiMain
 
     Private Sub MDiMain_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
 
+
+
         '제목표시줄에 프로그램명과 버젼을 표시합니다
         Me.Text = My.Application.Info.ProductName & " Ver. {0}.{1:00}.{2}.{3}"
         Me.Text = System.String.Format(Me.Text, My.Application.Info.Version.Major, My.Application.Info.Version.Minor, My.Application.Info.Version.Build, My.Application.Info.Version.Revision)
@@ -366,6 +368,42 @@ Public Class MDiMain
     End Function
 
     Private Function ReadAuth() As Boolean
+
+        Dim reg_install, reg_installkey As Long
+
+        '//레지스트리랑 비교한다.
+        Dim MainKey As Microsoft.Win32.RegistryKey = My.Computer.Registry.CurrentUser.OpenSubKey("Software\FileManager")
+        If MainKey Is Nothing Then
+            reg_install = 0
+            reg_installkey = 0
+            MainKey = My.Computer.Registry.CurrentUser.CreateSubKey("Software\FileManager")
+            MainKey.SetValue("install", reg_install)
+            MainKey.SetValue("installkey", reg_installkey)
+            MainKey.Close()
+        Else
+            Dim v_install As Object = MainKey.GetValue("install")
+            Dim v_key As Object = MainKey.GetValue("installkey")
+
+            MainKey.Close()
+
+            MainKey = My.Computer.Registry.CurrentUser.CreateSubKey("Software\FileManager")
+            If Not v_install Is Nothing Then
+                reg_install = CType(v_install, Long)
+            Else
+                reg_install = 0
+                MainKey.SetValue("install", reg_install)
+            End If
+            If Not v_key Is Nothing Then
+                reg_installkey = CType(v_key, Long)
+            Else
+                reg_installkey = 0
+                MainKey.SetValue("installkey", reg_installkey)
+            End If
+            MainKey.Close()
+        End If
+
+
+
         If install = 0 OrElse installkey = 0 Then
             ' MsgBox("인증정보가 존재하지 않습니다." & vbCrLf & vbCrLf & "홈페이지 [자료실] 에서 인증번호를 확인하세요" & vbCrLf & "062-382-0411" & vbCrLf & Common.HomePage, MsgBoxStyle.Critical, "확인")
             'Process.Start(HomePage)
@@ -394,6 +432,14 @@ Public Class MDiMain
             Return False
         End If
 
+        '//레지키와비교
+        If install <> reg_install OrElse installkey <> reg_installkey Then
+            ' MsgBox("인증정보가 존재하지 않습니다." & vbCrLf & vbCrLf & "홈페이지 [자료실] 에서 인증번호를 확인하세요" & vbCrLf & "062-382-0411" & vbCrLf & Common.HomePage, MsgBoxStyle.Critical, "확인")
+            'Process.Start(HomePage)
+            Return False
+        End If
+
+
         Rundate = Date.FromFileTimeUtc(install)
 
         Return True
diff --git a/DriveInfo/MyAuth.vb b/DriveInfo/MyAuth.vb
index d17fa8e..d4a4fea 100644
--- a/DriveInfo/MyAuth.vb
+++ b/DriveInfo/MyAuth.vb
@@ -170,10 +170,19 @@ Public Class MyAuth  '//각종인증방법을 이용한다.
         Arinini.Write("main", "install2", Newkey)
         Arinini.Write("main", "installkey2", Newkey.GetHashCode)
 
+        Dim key As Long = Newkey
+        Dim key2 As Long = CType(Newkey.GetHashCode(), Long)
+
+        My.Computer.Registry.SetValue("HKEY_CURRENT_USER\Software\FileManager", "install", key)
+        My.Computer.Registry.SetValue("HKEY_CURRENT_USER\Software\FileManager", "installkey", key2)
+     
+
+
         Dim A As New System.Text.StringBuilder
         A.AppendLine("인증정보가 파일에 기록되었습니다")
         A.AppendLine("만기일 : " & Date.FromFileTimeUtc(Newkey))
         MsgBox(A.ToString, MsgBoxStyle.Information, "기록완료")
+
     End Sub