>Does the patch will present having it in the future?

It prevents exploitation of this specific vulnerability in IIS...obviously there may be other holes found in the future

>Is it related only to IIS Index server?

It is related to IIS Index server, but according to MS site index server did not have to be explicitely installed (and it does not have to be running) for the problem to exist. See the quote (in blue) from MS site that I put in message to Michel elsewhere in this thread.