The HP ProLiant iLO 2 Legacy Support Function driver is related to HP's Integrated Lights-Out (iLO) management feature for ProLiant servers. iLO is a proprietary technology developed by HP that allows for out-of-band management of HP ProLiant servers. It enables administrators to remotely control, monitor, and manage the server hardware without needing to physically be at the server, which is useful for tasks like server reboot, power cycling, troubleshooting, and firmware updates.

The iLO 2 Legacy Support Function driver is specifically for iLO 2 systems, which is an older version of the iLO technology. It provides support for legacy iLO 2 devices and ensures that certain functionalities of iLO, such as remote management and KVM (keyboard, video, mouse) over IP, work properly in a Windows environment.

If you're dealing with an HP ProLiant server that has iLO 2, you might need this driver to enable certain features when running Windows, especially if you're experiencing compatibility issues or if Windows is failing to recognize the iLO 2 hardware.