Be aware that the latest ESXi ISO files supporting ProLiant Gen8 servers are now on www.vmware.com and not anymore on the HP Software Depot.

Follow the steps below:

1. go to www.vmware.com/download

2. Select vSphere

3. You will see Product Downloads/Drivers & Tools/Open Source tabs. Select Drivers & Tools

4. Expand the OEM Customized Installer CD section and you will find it there.

 

For other files, go to http://vibsdepot.hp.com/