Is your Vista Genuine? Check it via C# code.

May be you are a die hard Microsoft fan, or just another bunch of showbiz talk-lock fella or more better you use some of the Vista features in your application and want that only genuine Microsoft Vista owners apply to your services.

Actually, I wrote this code like a year ago, and now while browsing through my backups, I noted that it lied there uselessly. I never used it but probably any one of ya might want to apply this logic.

This is the usage of the function:

   1: bool valid = new WgaHelper().IsVistaGenuine();

And this my fella, would be the code that verifies it genuinely:

   1: public bool IsVistaGenuine()

   2: {

   3:     bool isGenuine = true;

4:

   5:     if (IsVista)

   6:     {

   7:         Guid guidSlid = new Guid("55c92734-d682-4d71-983e-d6ec3f16059f");

   8:         Windows_SLID windowsSlid = ToGUID(guidSlid);

   9:         try

  10:         {

  11:             GenuineState genuineState = GenuineState.Last;

  12:             uint genuineStateUInt = SLIsGenuineLocal(ref windowsSlid, ref genuineState, IntPtr.Zero);

13:

  14:             if (genuineState != GenuineState.Genuine)

  15:             {

  16:                 isGenuine = false;

  17:             }

  18:         }

  19:         catch (Exception ex)

  20:         {

  21:             Debug.Fail(ex.Message);

  22:         }

  23:     }

24:

  25:     return isGenuine;

  26: }

Explanation to working of the code, I will describe in later, here or maybe on CodeProject (I got no articles there Crying )!

Here are the files, both demo executable and the source code:

Posted on Thursday, July 3, 2008 1:46 AM Microsoft | Back to top