Yes, you do need them.
Read this information about them:
Why Are There So Many “Microsoft Visual C++ Redistributables ...
Any additional versions of the Visual C++ Redistributable you see on your system were installed along with some program that required it. When a developer codes in a specific version of Visual C++, the code libraries for that version must also be present on the user’s system for the application to run. That means that, for example, if a developer used Visual C++ 2005 (or Visual Studio 2005) to create a program you’re installing, you can expect to see the Visual C++ 2005 Redistributable installed on your system along with the program.
Cheers.