Knowledgebase : Downloads > Updates since last Release - IMPORTANT

Updated Jan 19, 2015

For the initial release of EnergyPlus v8.2.0 on Windows, EP-Launch or IDF Editor may fail to launch due to a missing system file, such as Comdlg32.ocx, msinet.ocx or vsflex7l.ocx.  This can be resolved by installing v8.2.0-Update 1 which also fixes other critical bugs:

https://github.com/NREL/EnergyPlus/releases/tag/v8.2.0-Update-1.2