Eclipse there are also 32-bit version and the 64-bit version, and the version of the eclipse depends on a certain version of JDK you have installed, without depending on the operating system. If the 32-bit version of the JDK installed, this eclipse must install the 32-bit version, empathy 64, eclipse version JDK version different causes eclipse can not start, reported missing DLL file errors.
Eclipse also divided version installed version and unpack, install version need to install, unzip version, can be used after decompression.