subprocess.Popen need shell=True on windows.

[nrnhines]

From a windows install of NEURON,
bash-5.1$ runmodels --norun --workdir foo 3670
succeeds in the sense of

$ cd foo/NTW_NEW
$ nrniv
NEURON -- VERSION 8.2a-109-gff2af9afd+ olupton/more-c++ (ff2af9afd+) 2022-06-09
Duke, Yale, and the BlueBrain Project -- Copyright 1984-2021
See http://neuron.yale.edu/neuron/credits

loading membrane mechanisms from E:\hines\models\nrn-modeldb-ci\foo\NTW_NEW\nrnmech.dll
Additional mechanisms from files
 HH2.mod IAHP.mod ICAN.mod IT2.mod capump.mod gabaa.mod gabab1.mod
oc>

and in foo.json, one can see that the compilation occurred.

[alexsavulescu]

Just launched the whole CI for hines/windows-modelrun here: https://github.com/neuronsimulator/nrn-modeldb-ci/actions/runs/2515415377

If all OK (in the report), will merge

[alexsavulescu]

The CI got stuck, we should investigate this locally.