> > > > I've built the last C version of elog in git, revision 1ebfd06c using mingw-64 ; the resulting binaries work for me on Windows 2019.
> > > > Attached is a zip file with the binaries.
> > > > I was not able to create a new installer, these are just the executables
> > > 
> > > I tried to just exchange the attached binaries in my installation but this didn't worked.
> > > elogd was not able to start.
> > 
> > hmmm strange - did you get an error message or did the binary simply not start?  I've only tested this on a single Windows machine....
> 
> Error message is:
> 
> Error 1053: The service did not respond to the start or control request in a timely fashion.
> 
> I have to admit that I'm doing all this on a Server 2012 machine.


Windows Server 2012 itself is almost EOL but it should still work, I believe.  I did see that the elog314-2.exe file is a Win32 binary whereas my binaries are 64bit. On Windows Server 2019 did not cause any issues.
Can you try the following
- extract the new elogd.exe binary somewhere , e.g. c:\temp\elogd.exe
- then type
  cd \Program Files (x86)\ELOG
  \temp\elogd.exe

- post the output/error code that you see.