Strange NTVDM behaviour

[St]

Each time I'm running DOS or Win16 app, the process ntvdm.exe tries to
create some files in <Windows>\TEMP folder, despite both TMP and TEMP are
set to other folder. Why that's happening and is it possible to prevent
it?

 

[Tim Meddick]

Hi St,
This is something you are doing in the Command Prompt window or
application running in it or other 16-bit application, rather than ntvdm.exe
which is just managing the process by creating an environment in which to
run.