The use of Windows XP as an operating system for FLEXlm license servers is very popular in organizations. It allows the reuse of existing OS licenses and provides the needed functionality.
OpenLM Broker is an optional but highly recommended component that can be installed on the license server. It supports any operating system that supports JAVA. On Windows it’s implemented as a service. The OpenLM Broker provides advanced functionality to FLEXlm and other supported license managers such as IBM LUM, Sentinel RMS, Sentinal HASP and others.