MS visual C++

Hi all,
I have Revo uninstaller installed and I just noticed these eight items. I have no idea what, how, why........what are they? Can they be deleted?

The C++ Redistributable package is a dependency of many programs. Some programs require a different version that is why you see so many installed. Removing these could cause some of your software to stop functioning.

Thanks Nitro,
Does that mean these items appear when programs are installed? With the KB prefix followed by numbers I thought they may have been "updates" but updates don't appear in Revo.
I can't work it out as I haven't installed any programs relative to the date/s shown on these entries, but one by one, they seem to "appear" over time.
It's not causing any problems with the comp........yet.......so maybe just leave them alone you think??

The entries beginning with KB are updates to the C++ package. Yes they are installed when a program is installed that requires them. I would leave them as they do not cause any harm and may be needed by the programs you have installed. There are 17 on my computer, nothing to worry about. :)

Thanks mate! I'll rest easier now