What is vcredist?

Answer 1

If it's in the context of a computer, it probably refers to the Microsoft Visual C redistributable library. Programs written in Visual C may access libraries which are not necessarily included with the operating system, but which Microsoft allows Visual C licensees to redistribute (you can also go to Microsoft's website and download them from there; however, if you do this, there are multiple versions, and you need to be sure to get the one the program you want to run was complied against).