Installation and Upgrade > Installation and Configuration Guide > Advanced Configurations > Running Windchill as a Windows Service > Points to Consider When Running a Windows Service
  
Points to Consider When Running a Windows Service
The following items are points that should be considered when running an application as a Windows service:
The environment that supports a running service is different than the environment in which a service was launched from a console window.
A service running under the default system account is not able to access the shared network resources. You must modify the permissions to allow access to the shared network resources.
The server launchers require a formally installed JRE in order to run. Formally installed means the JRE was installed with the JRE installer; which updates the Windows registry. If you copy a JDK or JRE folder from a different source, the JavaSoft (or IBM) registry keys will not exist and the service launcher will not be able to locate the JVM.