THERM 7.8 won't start on Windows 11 (0xc000007b) after fresh install

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Darren O' Toole

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Jul 20, 2026, 3:16:25 PM (2 days ago) Jul 20

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Hi,

I have downloaded THERM 7.8 from the official LBNL website and completed a clean installation on Windows 11 (24H2).

THERM installs successfully but immediately fails with:

The application was unable to start correctly (0xc000007b).

I have already tried:

Fresh installation of THERM 7.8
Installing the required Microsoft Visual C++ Redistributables
Installing the Intel Fortran Runtime recommended on the THERM website
Restarting Windows

I also carried out debugging using WinDbg.

The loader log shows THERM loading libifcoremd.dll before failing while loading libmmd.dll, resulting in error 0xc000007b.

The Intel runtime currently installed is:

libifcoremd.dll
File version: 2025.11.4.0
Product version: 2026.0.0

located in:

C:\Program Files (x86)\Common Files\Intel\Shared Libraries\bin

Has anyone experienced this with THERM 7.8 on recent versions of Windows 11, or is there a known compatible Intel Fortran runtime that should be used instead?

I can provide the WinDbg loader log (THERM-loader.txt) if required.

Thanks,

Darren O'Toole

Disclaimer: I had ChatGPT write this email as the install is gone over my head. Thanks in advance for any guidance. Please also note I have attached the THERM loader file on the advice of Chat GPT also.