VMware VIX API 1.10.1 has been posted for download. It's available at http://www.vmware.com/go/vix.
This update is required for compatibility with vSphere 4.1. It is also compatible with:
vSphere 4.0 and later
VMware Workstation 6.0 and later (including the latest, Workstation 7.1)
VMware Player 3.0 and later (including the latest, Player 3.1)
VMware Server
We hope you enjoy it!
There will also be a tech talk at VMworld Developer Days, on how to automate operations in the Guest OS, including coverage of the VIX API and the future API roadmap.