Оформил: DeeCo
Автор: http://www.swissdelphicenter.ch

procedure TForm1.Button1Click(Sender: TObject);
 const
   TokenSize = 800; //  (SizeOf(Pointer)=4 *200) 
var
   hToken: THandle;
   pTokenInfo: PTOKENPRIVILEGES;
   ReturnLen: Cardinal;
   i: Integer;
   PrivName: PChar;
   DisplayName: PChar;
   NameSize: Cardinal;
   DisplSize: Cardinal;
   LangId: Cardinal;
 begin
   GetMem(pTokenInfo, TokenSize);
   if not OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES or TOKEN_QUERY,
     hToken) then ShowMessage('OpenProcessToken error');
   if not GetTokenInformation(hToken, TokenPrivileges, pTokenInfo, TokenSize, ReturnLen) then
     ShowMessage('GetTokenInformation error');
   GetMem(PrivName, 255);
   GetMem(DisplayName, 255);
   for i := 0 to pTokenInfo.PrivilegeCount - 1 do
   begin
     DisplSize := 255;
     NameSize  := 255;
     LookupPrivilegeName(nil, pTokenInfo.Privileges[i].Luid, PrivName, Namesize);
     LookupPrivilegeDisplayName(nil, PrivName, DisplayName, DisplSize, LangId);
     ListBox1.Items.Add(PrivName +^I + DisplayName);
   end;
   FreeMem(PrivName);
   FreeMem(DisplayName);
   FreeMem(pTokenInfo);
 end;