unit U_CheckWinVer;

interface
uses
  Windows;
var
  //Реальная версия ОС, а не та что выдается системой при запуске
  //в режиме совместимости
  Win32MajorVersionReal: Integer;
  Win32MinorVersionReal: Integer;

implementation
type
  PPEB=^PEB;
  PEB = record
    InheritedAddressSpace: Boolean;
    ReadImageFileExecOptions: Boolean;
    BeingDebugged: Boolean;
    Spare: Boolean;
    Mutant: Cardinal;
    ImageBaseAddress: Pointer;
    LoaderData: Pointer;
    ProcessParameters: Pointer; //PRTL_USER_PROCESS_PARAMETERS;
    SubSystemData: Pointer;
    ProcessHeap: Pointer;
    FastPebLock: Pointer;
    FastPebLockRoutine: Pointer;
    FastPebUnlockRoutine: Pointer;
    EnvironmentUpdateCount: Cardinal;
    KernelCallbackTable: PPointer;
    EventLogSection: Pointer;
    EventLog: Pointer;
    FreeList: Pointer; //PPEB_FREE_BLOCK;
    TlsExpansionCounter: Cardinal;
    TlsBitmap: Pointer;
    TlsBitmapBits: array[0..1] of Cardinal;
    ReadOnlySharedMemoryBase: Pointer;
    ReadOnlySharedMemoryHeap: Pointer;
    ReadOnlyStaticServerData: PPointer;
    AnsiCodePageData: Pointer;
    OemCodePageData: Pointer;
    UnicodeCaseTableData: Pointer;
    NumberOfProcessors: Cardinal;
    NtGlobalFlag: Cardinal;
    Spare2: array[0..3] of Byte;
    CriticalSectionTimeout: LARGE_INTEGER;
    HeapSegmentReserve: Cardinal;
    HeapSegmentCommit: Cardinal;
    HeapDeCommitTotalFreeThreshold: Cardinal;
    HeapDeCommitFreeBlockThreshold: Cardinal;
    NumberOfHeaps: Cardinal;
    MaximumNumberOfHeaps: Cardinal;
    ProcessHeaps: Pointer;
    GdiSharedHandleTable: Pointer;
    ProcessStarterHelper: Pointer;
    GdiDCAttributeList: Pointer;
    LoaderLock: Pointer;
    OSMajorVersion: Cardinal;
    OSMinorVersion: Cardinal;
    OSBuildNumber: Cardinal;
    OSPlatformId: Cardinal;
    ImageSubSystem: Cardinal;
    ImageSubSystemMajorVersion: Cardinal;
    ImageSubSystemMinorVersion: Cardinal;
    GdiHandleBuffer: array [0..33] of Cardinal;
    PostProcessInitRoutine: Cardinal;
    TlsExpansionBitmap: Cardinal;
    TlsExpansionBitmapBits: array [0..127] of Byte;
    SessionId: Cardinal;
  end;
 
//Получить блок PEB своего процесса
function GetPDB: PPEB; stdcall;
asm
  MOV EAX, DWORD PTR FS:[30h]
end;
initialization
  //Получаем реальную версию ОС
  Win32MajorVersionReal := GetPDB^.OSMajorVersion;
  Win32MinorVersionReal := GetPDB^.OSMinorVersion;

end.