LibreOffice headless still needs "Windows Interactive Session" for background conversion

users
#1

Hello all,

here is my scenario: I am running Apache web server on Windows. The web server will invoke "soffice --headless --convert-to pdf somefile...." to convert it into a PDF-file. This does not work when the Apache web server is running as a service. The effect is well described: in modern versions of Windows (starting with Vista) services live in an isolated session 0.
Microsoft has documented this here:
  https://msdn.microsoft.com/de-de/library/windows/desktop/ms683502(v=vs.85).aspx
and
  https://msdn.microsoft.com/en-us/library/windows/hardware/dn653293(v=vs.85).aspx

My question is, why "soffice --headless" (and I have tried --invisible, --nologo, ... in addition) still requires an interactive desktop to be present. This kills all background automation use cases that are triggered via web calls.

Regards
maba