Douglas,

The Navisphere agent for ESX 3.5 come bundled with Navisphere. There would be an agent for R26.

Here's the information to download Host agent for ESX 3.5:

http://powerlink.emc.com/km/live1/en_US/Offering_Technical/Technical_Documentation/300-004-281_A06_elccnt_0.pdf?

The ESX version of the Navisphere Host Agent/CLI is bundled with the Linux version, so you must download the Linux zip file.

Thanks!

Cody

Cody Hosterman
Symmetrix Partner Engineering
Integrated Customer Operations
EMC Corporation