In PowerShell 3.0, Microsoft introduced the Common Information Model (CIM) cmdlets as a way of working with WMI information. The advantage was that instead of connecting to WMI over RPC and DCOM, which is not very firewall-friendly, we can connect using the WSMan protocol, delivered by the WinRM service which uses only a couple ports. Here’s the best part and why you should be learning to how to use the CIM cmdlets: You can connect to any device or server that supports WSMan and CIM. This includes a VMware ESXi server.
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