How to Get BIOS Information in Delphi

program GetWMI_Info;

{$APPTYPE CONSOLE}

uses
  SysUtils,
  ActiveX,
  ComObj,
  Variants;

procedure  GetWin32_BIOSInfo;
const
  WbemUser            ='';
  WbemPassword        ='';
  WbemComputer        ='localhost';
  wbemFlagForwardOnly = $00000020;
var
  FSWbemLocator : OLEVariant;
  FWMIService   : OLEVariant;
  FWbemObjectSet: OLEVariant;
  FWbemObject   : OLEVariant;
  oEnum         : IEnumvariant;
  iValue        : LongWord;
begin;
  FSWbemLocator := CreateOleObject('WbemScripting.SWbemLocator');
  FWMIService   := FSWbemLocator.ConnectServer(WbemComputer, 'root\CIMV2', WbemUser, WbemPassword);
  FWbemObjectSet:= FWMIService.ExecQuery('SELECT * FROM Win32_BIOS','WQL',wbemFlagForwardOnly);
  oEnum         := IUnknown(FWbemObjectSet._NewEnum) as IEnumVariant;
  while oEnum.Next(1, FWbemObject, iValue) = 0 do
  begin
    Writeln(Format('BiosCharacteristics               %d',[Integer(FWbemObject.BiosCharacteristics)]));// Uint16
    Writeln(Format('BIOSVersion                       %s',[String(FWbemObject.BIOSVersion)]));// String
    Writeln(Format('BuildNumber                       %s',[String(FWbemObject.BuildNumber)]));// String
    Writeln(Format('Caption                           %s',[String(FWbemObject.Caption)]));// String
    Writeln(Format('CodeSet                           %s',[String(FWbemObject.CodeSet)]));// String
    Writeln(Format('CurrentLanguage                   %s',[String(FWbemObject.CurrentLanguage)]));// String
    Writeln(Format('Description                       %s',[String(FWbemObject.Description)]));// String
    Writeln(Format('EmbeddedControllerMajorVersion    %d',[Integer(FWbemObject.EmbeddedControllerMajorVersion)]));// Uint8
    Writeln(Format('EmbeddedControllerMinorVersion    %d',[Integer(FWbemObject.EmbeddedControllerMinorVersion)]));// Uint8
    Writeln(Format('IdentificationCode                %s',[String(FWbemObject.IdentificationCode)]));// String
    Writeln(Format('InstallableLanguages              %d',[Integer(FWbemObject.InstallableLanguages)]));// Uint16
    Writeln(Format('InstallDate                       %s',[String(FWbemObject.InstallDate)]));// Datetime
    Writeln(Format('LanguageEdition                   %s',[String(FWbemObject.LanguageEdition)]));// String
    Writeln(Format('ListOfLanguages                   %s',[String(FWbemObject.ListOfLanguages)]));// String
    Writeln(Format('Manufacturer                      %s',[String(FWbemObject.Manufacturer)]));// String
    Writeln(Format('Name                              %s',[String(FWbemObject.Name)]));// String
    Writeln(Format('OtherTargetOS                     %s',[String(FWbemObject.OtherTargetOS)]));// String
    Writeln(Format('PrimaryBIOS                       %s',[String(FWbemObject.PrimaryBIOS)]));// Boolean
    Writeln(Format('ReleaseDate                       %s',[String(FWbemObject.ReleaseDate)]));// Datetime
    Writeln(Format('SerialNumber                      %s',[String(FWbemObject.SerialNumber)]));// String
    Writeln(Format('SMBIOSBIOSVersion                 %s',[String(FWbemObject.SMBIOSBIOSVersion)]));// String
    Writeln(Format('SMBIOSMajorVersion                %d',[Integer(FWbemObject.SMBIOSMajorVersion)]));// Uint16
    Writeln(Format('SMBIOSMinorVersion                %d',[Integer(FWbemObject.SMBIOSMinorVersion)]));// Uint16
    Writeln(Format('SMBIOSPresent                     %s',[String(FWbemObject.SMBIOSPresent)]));// Boolean
    Writeln(Format('SoftwareElementID                 %s',[String(FWbemObject.SoftwareElementID)]));// String
    Writeln(Format('SoftwareElementState              %d',[Integer(FWbemObject.SoftwareElementState)]));// Uint16
    Writeln(Format('Status                            %s',[String(FWbemObject.Status)]));// String
    Writeln(Format('SystemBiosMajorVersion            %d',[Integer(FWbemObject.SystemBiosMajorVersion)]));// Uint8
    Writeln(Format('SystemBiosMinorVersion            %d',[Integer(FWbemObject.SystemBiosMinorVersion)]));// Uint8
    Writeln(Format('TargetOperatingSystem             %d',[Integer(FWbemObject.TargetOperatingSystem)]));// Uint16
    Writeln(Format('Version                           %s',[String(FWbemObject.Version)]));// String
  
    Writeln('');
    FWbemObject:=Unassigned;
  end;
end;


begin
 try
    CoInitialize(nil);
    try
      GetWin32_BIOSInfo;
    finally
      CoUninitialize;
    end;
 except
    on E:EOleException do
        Writeln(Format('EOleException %s %x', [E.Message,E.ErrorCode]));
    on E:Exception do
        Writeln(E.Classname, ':', E.Message);
 end;
 Writeln('Press Enter to exit');
 Readln;   
end.