VMware recently introduced the new and improved VI Toolkit, version 1.5

VI Toolkit (for Windows) is a command-line and scripting tool built on Windows PowerShell. It provides more than 150 cmdlets for managing and automating your VMware Infrastructure. You can download now this new version from : http://www.vmware.com/downloads/download.do?downloadGroup=VI-WT-15

For the release notes you can visit: