Update 1 consists of files to fix some problems experienced by Windows 7
users as well as revised weather data and a weather processing file. The
weather data should be updated by Mac, Windows and Linux users. The
weather processing file should be updated by all Windows users. The
Windows 7 updates are optional for users of Windows XP and Vista. The
entire set of changes can be downloaded in a single zip file (the first
file shown below) which should be extracted in the EnergyPlus directory
or else individual files can be downloaded.
The files need to be extracted from the ZIP in the directory containing
EnergyPlus (by default EnergyPlusV4-0-0) by any program that opens ZIP
files. Windows XP, Vista and Windows 7 can perform this function without
added software by right clicking on the ZIP file and selecting
"extract all" and place the files into the EnergyPlus
directory. As the files are extracted, you should be prompted to replace
existing files in existing folders, answer yes to replace. If you are not
prompted to replace, the files have probably not been extracted to the
proper location.