LsaEnumerateAccountRights schlägt fehl

[Luckie]

Nein, das ist es leider nicht:

Delphi-Quellcode:

function GetAccountSid(const Server, User: WideString; var Sid: PSID): DWORD;
var
  dwDomainSize, dwSidSize: DWord;
  R                 : LongBool;
  wDomain           : WideString;
  Use               : DWord;
begin
  Result := 0;
  SetLastError(0);
  dwSidSize := 0;
  dwDomainSize := 0;
  R := LookupAccountNameW(PWideChar(Server), PWideChar(User), nil, dwSidSize, nil, dwDomainSize, Use);
  if (not R) and (GetLastError = ERROR_INSUFFICIENT_BUFFER) then
  begin
    SetLength(wDomain, dwDomainSize);
    Sid := GetMemory(dwSidSize);
    R := LookupAccountNameW(PWideChar(Server), PWideChar(User), Sid, dwSidSize, PWideChar(wDomain), dwDomainSize, Use);
    if not R then
    begin
      FreeMemory(Sid);
      Sid := nil;
    end;
  end
  else
    Result := GetLastError;
end;