param(
  [Parameter(Mandatory)]
  [string]$VMName
)
#$vmName = Read-Host "Specify the name of your virtual machine"
$ns = "root\virtualization\v2"
$vsvms = Get-WmiObject -Namespace $ns -Class Msvm_VirtualSystemManagementService 
$vmcs = Get-WmiObject -Namespace $ns -Class Msvm_ComputerSystem -Filter "ElementName='$vmName'"
if (-not $vmcs) {
  Write-Host "Error: VM $vmname is missing."
  exit 1;
}
$vs_settingdata = ($vmcs.GetRelated("Msvm_VirtualSystemSettingData", "Msvm_SettingsDefineState", $null, $null, "SettingData", "ManagedElement", $false, $null) | %{$_})
$et_settingdata = $vs_settingdata.GetRelated("Msvm_SyntheticEthernetPortSettingData")
$vm_netconf = ($et_settingdata.GetRelated("Msvm_GuestNetworkAdapterConfiguration", "Msvm_SettingDataComponent", $null, $null, "PartComponent", "GroupComponent", $false, $null) | % {$_})
$yesno = Read-Host "Enable DHCP? (y/n[n])"
if ($yesno.toLower() -eq "y") {
  $vm_netconf.DHCPEnabled = $true
} else {
  $vm_netconf.DHCPEnabled = $false
  $vm_netconf.IPAddresses = @((Read-Host "Specify static ipv4 address"))
  $vm_netconf.Subnets = @((Read-Host "Specify subnetmask"))
  $vm_netconf.DefaultGateways = @((Read-Host "Specify default gateway"))
  $vm_netconf.DNSServers = @((Read-Host "Specify preferred dns server"))
}
$ret = $vsvms.SetGuestNetworkAdapterConfiguration($vmcs.Path, $vm_netconf.GetText(1))
if ($ret.ReturnValue -ne 0) {
  Write-Host "Error: something went wrong"
}
.\get-vmnicinfo.ps1 $vmName