Hello New context build is not friendly at all: "The application failed to initialize properly (0xc00000022)" windows fatal error is displayed twice. Here is the log: G:\rsync\win\texmf-win>texexec --make --luatex TeXExec | using search method 'kpsewhich' TeXExec | updating file database TeXExec | using tex engine luatex TeXExec | using tex format path ./luatex TeXExec | unable to make format due to lack of permissions TeXExec | using mp engine mpost TeXExec | using mps format path . TeXExec | generating mps format metafun TeXExec | TeXExec | mps engine path: . TeXExec | TeXExec | TeXExec | runtime: 70.969 Sure, I still have to play with env variables (nearly all of them require updating when migrating to new build). Where the LUAINPUT var should point to? And why it is not found in setuptex.bat? Is it needed at all? Best, Vaytcheslav