The Win32_Proxy WMI class contains properties and methods to query and configure an Internet connection related to Windows Product Activation (WPA).
Methods
Win32_Proxy has 1 methods:
| Method | Description |
|---|---|
| SetProxySetting | Creates a persistent Internet connection for WPA using a specified address and port number. |
Learn more about Invoke-CimMethod and how to invoke commands. Click any of the methods listed above to learn more about their purpose, parameters, and return value.
Properties
Win32_Proxy returns 6 properties:
'Caption','Description','ProxyPortNumber','ProxyServer','ServerName','SettingID'
Unless explicitly marked as writeable, all properties are read-only. Read all properties for all instances:
Get-CimInstance -ClassName Win32_Proxy -Property *
Most WMI classes return one or more instances.
When
Get-CimInstancereturns no result, then apparently no instances of class Win32_Proxy exist. This is normal behavior.Either the class is not implemented on your system (may be deprecated or due to missing drivers, i.e. CIM_VideoControllerResolution), or there are simply no physical representations of this class currently available (i.e. Win32_TapeDrive).
Caption
Get-CimInstance -ClassName Win32_Proxy | Select-Object -Property Caption
Description
Get-CimInstance -ClassName Win32_Proxy | Select-Object -Property Description
ProxyPortNumber
Port number configured on the computer for access to the proxy server specified by the ProxyServer property.
Get-CimInstance -ClassName Win32_Proxy | Select-Object -Property ProxyPortNumber
ProxyServer
Name of the proxy server configured for the user.
Get-CimInstance -ClassName Win32_Proxy | Select-Object -Property ProxyServer
ServerName
Name of the computer whose proxy settings are to be accessed.
Get-CimInstance -ClassName Win32_Proxy | Select-Object -Property ServerName
SettingID
Get-CimInstance -ClassName Win32_Proxy | Select-Object -Property SettingID
Examples
List all instances of Win32_Proxy
Get-CimInstance -ClassName Win32_Proxy
Learn more about Get-CimInstance and the deprecated Get-WmiObject.
View all properties
Get-CimInstance -ClassName Win32_Proxy -Property *
View key properties only
Get-CimInstance -ClassName Win32_Proxy -KeyOnly
Selecting Properties
To select only some properties, pipe the results to Select-Object -Property a,b,c with a comma-separated list of the properties you require. Wildcards are permitted.
Get-CimInstance always returns all properties but only retrieves the ones that you specify. All other properties are empty but still present. That’s why you need to pipe the results into Select-Object if you want to limit the visible properties, i.e. for reporting.
Selecting Properties
The code below lists all available properties. Remove the ones you do not need:
$properties = 'Caption',
'Description',
'ProxyPortNumber',
'ProxyServer',
'ServerName',
'SettingID'
Get-CimInstance -ClassName Win32_Proxy | Select-Object -Property $properties
Limiting Network Bandwidth
If you work remotely, it makes sense to limit network bandwidth by filtering the properties on the server side, too:
Get-CimInstance -Class Win32_Proxy -Property $property |
Select-Object -Property $property
Selecting Instances
To select some instances, use Get-CimInstance and a WMI Query. The wildcard character in WMI Queries is % (and not “*”).
The parameter -Filter runs a simple query.
Listing all instances where the property Caption starts with “A”
Get-CimInstance -Class Win32_Proxy -Filter 'Caption LIKE "a%"'
Using a WQL Query
The parameter -Query uses a query similar to SQL and combines the parameters -Filter and -Property. This returns all instances where the property Caption starts with “A”, and returns the properties specified:
Get-CimInstance -Query "SELECT ProxyServer, Description, SettingID, Caption FROM Win32_Proxy WHERE Caption LIKE 'a%'"
Any property you did not specify is still present but empty. You might need to use
Select-Objectto remove all unwanted properties:Get-CimInstance -Query "SELECT ProxyServer, Description, SettingID, Caption FROM Win32_Proxy WHERE Caption LIKE 'a%'" | Select-Object -Property ProxyServer, Description, SettingID, Caption
Accessing Remote Computers
To access remote systems, you need to have proper permissions. User the parameter -ComputerName to access one or more remote systems.
Authenticating as Current User
# one or more computer names or IP addresses:
$list = 'server1', 'server2'
# authenticate with your current identity:
$result = Get-CimInstance -ClassName Win32_Proxy -ComputerName $list
$result
Authenticating as Different User
Use a CIMSession object to authenticate with a new identity:
# one or more computer names or IP addresses:
$list = 'server1', 'server2'
# authenticate with a different identity:
$cred = Get-Credential -Message 'Authenticate to retrieve WMI information:'
$session = New-CimSession -ComputerName $list -Credential $cred
$result = Get-CimInstance Win32_Proxy -CimSession $session
# remove the session after use (if you do not plan to re-use it later)
Remove-CimSession -CimSession $session
$result
Learn more about accessing remote computers.
Requirements
To use Win32_Proxy, the following requirements apply:
PowerShell
Get-CimInstance was introduced with PowerShell Version 3.0, which in turn was introduced on clients with Windows 8 and on servers with Windows Server 2012.
If necessary, update Windows PowerShell to Windows PowerShell 5.1, or install PowerShell 7 side-by-side.
Operating System
Win32_Proxy was introduced on clients with Windows XP and on servers with Windows Server 2003.
Namespace
Win32_Proxy lives in the Namespace Root/CIMV2. This is the default namespace. There is no need to use the -Namespace parameter in Get-CimInstance.
Implementation
Win32_Proxy is implemented in Licwmi.dll and defined in Licwmi.mof. Both files are located in the folder C:\Windows\system32\wbem:
explorer $env:windir\system32\wbem
notepad $env:windir\system32\wbem\Licwmi.mof