On Windows, if the Express Server is not running or if you have trouble accessing the Express Server Manager, ensure that the Tomcat service has permission to access the registry. The Tomcat service reads the registry to locate the Express Server installation directory. If you have changed the user that runs the Tomcat service, the Tomcat service may not be able to read the registry.
To ensure that the user that runs the Tomcat service can access the registry, complete the following steps:
Navigate to the following registry key:
HKEY_LOCAL_MACHINE/SOFTWARE/LizardTech
Look for the user that runs the Tomcat service in the list of users. Alternatively, look for the user group to which the user belongs.
If you do not see user in the list, click Add and enter the name of the user.