Question-and-Answer Resource for the Building Energy Modeling Community
Get started with the Help page
Ask Your Question

energyplus weather program no longer works

asked 2023-12-03 13:42:49 -0500

Joe Huang's avatar

updated 2023-12-04 11:38:58 -0500

Starting 2-3 months ago, EnergyPlus Weather program stopped working saying a comdlg32.dll is missing or corrupted. This has happened on two separate machines. has anyone else seen this problem or know of the solution?

edit retag flag offensive close merge delete



I actually did a web search on this problem after posting my question and found a youtube video explaining how to fix the problem. I followed the video and got rid of the pesky problem. I recommend watching the video as it provided the url to get the comdlg32.ocx (my mistake in writing it as *.dll) and how to register it on the PC. The only difference for me was I did everything using the command prompt window ran as administrator :-)

Joe Huang's avatar Joe Huang  ( 2023-12-04 17:43:29 -0500 )edit

1 Answer

Sort by ยป oldest newest most voted

answered 2023-12-04 11:48:52 -0500

This is not an uncommon problem in general and probably isn't related to EnergyPlus weather program specifically but just for any software from that era.

The file is usually located here:




If the file is present, you might want to just register it with REGSVR32 (just Google it)

You might want to try some of the suggestions here:

edit flag offensive delete link more

Your Answer

Please start posting anonymously - your entry will be published after you log in or create a new account.

Add Answer

Training Workshops


Question Tools

1 follower


Asked: 2023-12-03 13:42:49 -0500

Seen: 74 times

Last updated: Dec 04 '23