Additionally, the installer registers these libraries with the Windows Side-by-Side (WinSxS) assembly store, located at C:\Windows\WinSxS . This manager prevents "DLL hell" by allowing multiple versions of the same library to coexist.
: The (x64) package installs 64-bit versions of runtime libraries like msvcr90.dll (C runtime), msvcp90.dll (C++ standard library), and mfc90.dll (Microsoft Foundation Classes) into the system's native 64-bit folder ( C:\Windows\System32 ). msvcp90.dll (C++ standard library)
Includes C Runtime (CRT), Standard C++, ATL, MFC, OpenMP, and MSDIA libraries. msvcp90.dll (C++ standard library)
You can download the official package directly from Microsoft's Download Center . msvcp90.dll (C++ standard library)