I have a workstation that I built in VMWARE. I have an application that runs on the workstation that requires a log file to be constantly written to. We have noticed if we leave the workstation session open and viewing the desktop the log file collects info properly. If we just close the VMWARE window the logging stops. We are not logging the machine off but only closing the viewing window from the vSphere Client. We even went as far to set the services for the application to Manual and to restart after first failure to see if this made any difference. This modification did not change the outcome. If we leave the window open the software works fine.