@billdossett

vCNS 5.1.x is not compatible with ESXi 5.5, the bundles from this vCNS 5.1.x will not install on an ESXi 5.5 image.

For Endpoint: This is the one you want, but again you'll need the one from vCNS 5.5 (Even though it's still vShield Endpoint 5.1, the bundle has the information allowing it to be installed on 5.5).

https://vShield_Manager_IP/bin/offline-bundles/vShield-Endpoint-Mux.zip

The VMware-vShield-fastpath is for vShield App Firewall, and you would need to check with support, or the admin guides to get the proper location / name of the App FW offline bundle in vCNS 5.5 Again the one you've posted above is from vCNS 5.1.x or lower and will not work with an ESXi 5.5 image.

@blabarbera I'll see what I can do for a KB.