Sxsi X64 Windows 8 ((new)) Info

WinSxS

The folder, located at C:\Windows\WinSxS , serves as the "Side-by-Side" assembly store. In a 64-bit (x64) environment, it is particularly large because it must maintain compatibility for both 32-bit and 64-bit applications.

Keep dependencies built with the same compiler and runtime to avoid ABI/CRT issues.
On MSVC, prefer vcpkg to obtain libraries compiled for MSVC x64.
On MinGW-w64, use MSYS2 pacman packages to ensure GCC/gfortran-built libs.
If mixing Fortran and C/C++ across different toolchains, validate symbol naming and calling conventions; use ISO_C_BINDING (Fortran 2003) for safe interop.

Windows Performance Analyzer / Windows Performance Recorder.
Intel VTune (Intel compiler users).
gprof/Perf tools under MSYS2/GCC builds.

Purpose:

Enables Windows 8 64-bit to recognize and communicate with SxS memory cards when connected via ExpressCard slots or dedicated card readers. sxsi x64 windows 8

Sxsi X64 Windows 8 ((new)) Info

WinSxS

Purpose:

Mastering SxS (Side-by-Side) on x64 Windows 8: A Complete Diagnostic and Repair Guide