You do not need to install the Microsoft* X64 Compiler and Tools if you will only be doing Win32 (32-bit) development.
In this post I've collected a lot of links on the topic of 64-bit C/C++ software development.
Problem : No selection of "Use Intel C++" on the project context menu "Intel C++ Composer XE 2011" even the installation is successful.
The purpose of this article is to answer some questions related to safe port of C/C++ code on 64-bit systems. The article is written as an answer to the topic often discussed on forums and related to the use of /Wp64 key and Viva64 tool.
In case of a managed application, presence of some issues occurring during porting from a 32-bit operating system to a 64-bit one might look strange because managed code is technically independent from capacity of operating system and processor.
For more complete information about compiler optimizations, see our Optimization Notice.