Article Writing

Class DelegLink
  Function Subscribe(Subscriber As Object, Tag As Object) As DelegLink
  ' Subscribes an object.  Returns a DelegLink that may be used to unsubscribe

  Sub Unsubscribe()
  ' Invoking Unsubscribe on a deleglink returned by an earlier call to Subscribe
  ' will cancel the subscription.

  Sub Exec(Of T)(Param as T)
  ' Invokes DelegLink.iAct.Act(of T)(Param, Tag, SendLink) on all subscribers
  ' that implement it.  Subscribers whose Act() returns True will be unsubscribed.

  Interface iAct(of T)
    Function Act(Param as T, Tag as Object, SendLink as DelegLink) As Boolean
  End Interface

  Readonly Property Base As DelegLink
End Class

1. Windows API (very limited)
   
2. Direct Access to information: Windows Registry, File System (pain to research)
   
3. WMI (Windows Management Instrumentation) - limited support, very heavy and slow, extreme pain, especially for C++ development, requires a long search and often doesn’t work as expected, because it is provider-dependent.
   

System = { Software, Hardware, Security, Process, Networking }
Software = {OS, Drivers, Codecs, DotNet, DirectX, etc }
Hardware = {Processor, Memory, Mainboard, Monitors, Drives, Printers, Ports, etc}
Security = {User, Accounts, Firewall, etc..}