1 Private Shared Function ProgramExists(ByVal pgName As String) As Boolean 2         Dim temp As String = Nothing 3         Dim tempType As String = Nothing 4         Dim displayName As Object = Nothing 5         Dim uninstallString As Object = Nothing 6         Dim releaseType As Object = Nothing 7         Dim currKey As RegistryKey = Nothing 8         Dim softNum As Integer = 0 9         Dim pregkey = Registry.LocalMachine.OpenSubKey("Software\Microsoft\Windows\CurrentVersion\Uninstall")10         Dim result = False11         Try12             For Each item As String In pregkey.GetSubKeyNames()13                 currKey = pregkey.OpenSubKey(item)14                 displayName = currKey.GetValue("DisplayName")15                 uninstallString = currKey.GetValue("UninstallString")16                 releaseType = currKey.GetValue("ReleaseType")17                 Dim isSecurityUpdate = False18                 If releaseType IsNot Nothing Then19                     tempType = releaseType.ToString()20                     If tempType = "Security Update" OrElse tempType = "Update" Then21                         isSecurityUpdate = True22                     End If23                 End If24                 If (Not isSecurityUpdate) AndAlso _25                     (displayName IsNot Nothing) AndAlso _26                     (uninstallString IsNot Nothing) AndAlso27                     displayName = pgName Then28                     result = True29                     Exit For30                 End If31             Next item32         Catch33         Finally34             pregkey.Close()35         End Try36         Return result37     End Function