Main portal for legacy packages: Microsoft Support Lifecycle Direct utility updates: Microsoft Download Center
Official KB Article: KB184714 Direct Hash (for verification): The authentic file has a digital signature from "Microsoft Corporation" valid from 2006. microsoft visual c++ 2005 redistributable x64 download
Most software created after 2006 requires the SP1 version. If you install the original version (RTM) without the service pack, your game might still fail to launch. Main portal for legacy packages: Microsoft Support Lifecycle