Thanks Ravyne.
I got the following feedback from the last interview at anitvirus company, I really do not know what to reply to him, so that I open new branches
I’d like to thank you for the application.
We actually favored another job seeker who fitted better into the team in terms of qualification and previous knowledge in some very specific domains.
I’ll have you in mind when we look for a new position in the near future.
Because of the way its worded, I actually think there's an opportunity to continue to build a favorable impression with a simple response. Something along the lines of "Thanks again for having me in for an interview. I came away impressed with your company culture, and would be excited to be considered for future openings that match my skills."
That's all the more it needs to be. To be too long-winded, or appear overly excited in your response could very easily work against you, and torpedo your chances at being asked back. I would only encourage you to respond in this case because the precise way its worded sounds to me at face value that they actually do have a specific opening coming soon, and that the interviewer actually will consider you for it. But there's always the possibility that they're being overly pleasant, or the even more remote possibility that they've actively decided not to seriously consider you for future positions, and they think telling you that you will be considered is the quickest way to make you go away. You should honestly know whether that outside chance is the reality or not, and if it is, you should seriously examine what it is about you that might be irritating people.
In the general case of a "Thanks, but no thanks." response, its not necessary to respond, and it usually will only work against you if you do -- If you've solicited for feedback or followed up after the interview, you should already have thanked them for the interview and there should be nothing more that needs to be said -- thus, continuing on is just distracting a busy professional and dragging out a long process that no one enjoys (that is, filling an open position -- which is time-consuming, boring, and tedious) and they aren't going to think of you any better for that.