برای استفاده ابتدا یک یونیت جدید ایجاد کنید و نام آن را MSProdKey بگذارید و ان را به دلفی معرفی کنید. اگر مشکلی در استفاده از این یونیت داشتید حتما در تالار بیان کنید.

unit MSProdKey;

interface

uses Registry, Windows, SysUtils, Classes;

function IS_WinVerMin2K: Boolean; // Check OS for Win 2000 or higher
function View_Win_Key: string; // View the Windows Product Key
function IS_OXP_Installed: Boolean;  // Check if Office XP is installed
function View_OXP_Key: string;  // View the Office XP Product Key
function IS_O2K3_Installed: Boolean; // Check if Office 2003 is installed
function View_O2K3_Key: string; // View the Office 2003 Product Key
function DecodeProductKey(const HexSrc: array of Byte): string;
  // Decodes the Product Key(s) from the Registry

var
  Reg: TRegistry;
  binarySize: INTEGER;
  HexBuf: array of BYTE;
  temp: TStringList;
  KeyName, KeyName2, SubKeyName, PN, PID, DN: string;

implementation

function IS_WinVerMin2K: Boolean;
var
  OS: TOSVersionInfo;
begin
  ZeroMemory(@OS, SizeOf(OS));
  OS.dwOSVersionInfoSize := SizeOf(OS);
  GetVersionEx(OS);
  Result := (OS.dwMajorVersion >= 5) and
    (OS.dwPlatformId = VER_PLATFORM_WIN32_NT);
  PN     := ""; // Holds the Windows Product Name
  PID    := ""; // Holds the Windows Product ID
end;

function View_Win_Key: string;
begin
  Reg := TRegistry.Create;
  try
    Reg.RootKey := HKEY_LOCAL_MACHINE;
    if Reg.OpenKeyReadOnly("\SOFTWARE\Microsoft\Windows NT\CurrentVersion") then
    begin
      if Reg.GetDataType("DigitalProductId") = rdBinary then
      begin
        PN         := (Reg.ReadString("ProductName"));
        PID        := (Reg.ReadString("ProductID"));
        binarySize := Reg.GetDataSize("DigitalProductId");
        SetLength(HexBuf, binarySize);
        if binarySize > 0 then
        begin
          Reg.ReadBinaryData("DigitalProductId", HexBuf[0], binarySize);
        end;
      end;
    end;
  finally
    FreeAndNil(Reg);
  end;

  Result := "";
  Result := DecodeProductKey(HexBuf);
end;

function IS_OXP_Installed: Boolean;
var
  Reg: TRegistry;
begin
  Reg := TRegistry.Create;
  try
    Reg.RootKey := HKEY_LOCAL_MACHINE;
    Result      := Reg.KeyExists("SOFTWARE\MICROSOFT\Office\10.0\Registration");
  finally
    Reg.CloseKey;
    Reg.Free;
  end;
  DN  := ""; // Holds the Office XP Product Display Name
  PID := ""; // Holds the Office XP Product ID
end;

function View_OXP_Key: string;
begin
  try
    Reg         := TRegistry.Create;
    Reg.RootKey := HKEY_LOCAL_MACHINE;
    KeyName     := "SOFTWARE\MICROSOFT\Office\10.0\Registration\";
    Reg.OpenKeyReadOnly(KeyName);
    temp := TStringList.Create;
    Reg.GetKeyNames(temp); // Enumerate and hold the Office XP Product(s) Key Name(s)
    Reg.CloseKey;
    SubKeyName  := temp.Strings[0]; // Hold the first Office XP Product Key Name
    Reg         := TRegistry.Create;
    Reg.RootKey := HKEY_LOCAL_MACHINE;
    KeyName2    := "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\";
    Reg.OpenKeyReadOnly(KeyName2 + SubKeyName);
    DN := (Reg.ReadString("DisplayName"));
    Reg.CloseKey;
  except
    on E: EStringListError do
      Exit
  end;
  try
    if Reg.OpenKeyReadOnly(KeyName + SubKeyName) then
    begin
      if Reg.GetDataType("DigitalProductId") = rdBinary then
      begin
        PID        := (Reg.ReadString("ProductID"));
        binarySize := Reg.GetDataSize("DigitalProductId");
        SetLength(HexBuf, binarySize);
        if binarySize > 0 then
        begin
          Reg.ReadBinaryData("DigitalProductId", HexBuf[0], binarySize);
        end;
      end;
    end;
  finally
    FreeAndNil(Reg);
  end;

  Result := "";
  Result := DecodeProductKey(HexBuf);
end;

function IS_O2K3_Installed: Boolean;
var
  Reg: TRegistry;
begin
  Reg := TRegistry.Create;
  try
    Reg.RootKey := HKEY_LOCAL_MACHINE;
    Result      := Reg.KeyExists("SOFTWARE\MICROSOFT\Office\11.0\Registration");
  finally
    Reg.CloseKey;
    Reg.Free;
  end;
  DN  := ""; // Holds the Office 2003 Product Display Name
  PID := ""; // Holds the Office 2003 Product ID
end;

function View_O2K3_Key: string;
begin
  try
    Reg         := TRegistry.Create;
    Reg.RootKey := HKEY_LOCAL_MACHINE;
    KeyName     := "SOFTWARE\MICROSOFT\Office\11.0\Registration\";
    Reg.OpenKeyReadOnly(KeyName);
    temp := TStringList.Create;
    Reg.GetKeyNames(temp);
    // Enumerate and hold the Office 2003 Product(s) Key Name(s)
    Reg.CloseKey;
    SubKeyName  := temp.Strings[0]; // Hold the first Office 2003 Product Key Name
    Reg         := TRegistry.Create;
    Reg.RootKey := HKEY_LOCAL_MACHINE;
    KeyName2    := "SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\";
    Reg.OpenKeyReadOnly(KeyName2 + SubKeyName);
    DN := (Reg.ReadString("DisplayName"));
    Reg.CloseKey;
  except
    on E: EStringListError do
      Exit
  end;
  try
    if Reg.OpenKeyReadOnly(KeyName + SubKeyName) then
    begin
      if Reg.GetDataType("DigitalProductId") = rdBinary then
      begin
        PID        := (Reg.ReadString("ProductID"));
        binarySize := Reg.GetDataSize("DigitalProductId");
        SetLength(HexBuf, binarySize);
        if binarySize > 0 then
        begin
          Reg.ReadBinaryData("DigitalProductId", HexBuf[0], binarySize);
        end;
      end;
    end;
  finally
    FreeAndNil(Reg);
  end;

  Result := "";
  Result := DecodeProductKey(HexBuf);
end;

function DecodeProductKey(const HexSrc: array of Byte): string;
const
  StartOffset: Integer = $34; { //Offset 34 = Array[52] }
  EndOffset: Integer   = $34 + 15; { //Offset 34 + 15(Bytes) = Array[64] }
  Digits: array[0..23] of CHAR = ("B", "C", "D", "F", "G", "H", "J",
    "K", "M", "P", "Q", "R", "T", "V", "W", "X", "Y", "2", "3", "4", "6", "7", "8", "9");
  dLen: Integer = 29; { //Length of Decoded Product Key }
  sLen: Integer = 15;
  { //Length of Encoded Product Key in Bytes (An total of 30 in chars) }
var
  HexDigitalPID: array of CARDINAL;
  Des: array of CHAR;
  I, N: INTEGER;
  HN, Value: CARDINAL;
begin
  SetLength(HexDigitalPID, dLen);
  for I := StartOffset to EndOffset do
  begin
    HexDigitalPID[I - StartOffSet] := HexSrc[I];
  end;

  SetLength(Des, dLen + 1);

  for I := dLen - 1 downto 0 do
  begin
    if (((I + 1) mod 6) = 0) then
    begin
      Des[I] := "-";
    end
    else
    begin
      HN := 0;
      for N := sLen - 1 downto 0 do
      begin
        Value := (HN shl 8) or HexDigitalPID[N];
        HexDigitalPID[N] := Value div 24;
        HN    := Value mod 24;
      end;
      Des[I] := Digits[HN];
    end;
  end;
  Des[dLen] := Chr(0);

  for I := 0 to Length(Des) do
  begin
    Result := Result + Des[I];
  end;
end;

end.