PowerShell cmdlet reference
The PowerShell cmdlet reference describes every cmdlet in the XenServer PowerShell module: what it does, its syntax and parameters, and examples of its use. The cmdlets are grouped by the type of XenServer object that they work with.
The same content is available in PowerShell. After you import the module, run
Get-Help with the name of a cmdlet, for example:
Get-Help Get-XenVM -Full