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Dview not opening on new Windows 11 machine

asked 2025-07-17 09:25:30 -0600

Tom Atkins's avatar

updated 2025-07-21 10:06:56 -0600

Aaron Boranian's avatar

I've used BEopt version 2.8 for years with no issues on various Windows 10 machines. I recently moved to a Windows 11 machine, and models run but Dview will not open at the end of the model run. Does anyone have any ideas? Thanks in advance.

"dview.exe - Application Error"

"The application was unable to start correctly (0x0000007b). Click OK to close the application."

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answered 2025-07-21 10:17:07 -0600

shorowit's avatar

I think it's a DLL issue. I have found that this works on my Windows 11 machine:

  1. Download DView 1.2 from here
  2. Extract the files from the zip
  3. Copy msvcp120.dll and msvcr120.dll into the BEopt 2.8 installation dir (e.g., C:\Program Files (x86)\NREL\BEopt_2.8.0), overwriting the existing files.
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Asked: 2025-07-17 09:25:30 -0600

Seen: 155 times

Last updated: Jul 21

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