Now.,this is one of the most essential softwares for every one.Once If You instaled most of direct X problems, .net problems and even Visual C++ is solved.

(You must insall it for playing games ,to run heavy softwares ..also it solves minor pc problems).

                 Just You need to do is run the setup....which you can get from this link http://www.computerbase.de/downloads/systemtools/all-in-one-runtimes/ ....Its a nearly 341 mb file .