Win32_Proxy

The Win32_Proxy WMI class contains properties and methods to query and configure an Internet connection related to Windows Product Activation (WPA).

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-CimInstance returns 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

STRING MAX 64 CHAR

Get-CimInstance -ClassName Win32_Proxy | Select-Object -Property Caption

Description

STRING

Get-CimInstance -ClassName Win32_Proxy | Select-Object -Property Description

ProxyPortNumber

STRING MAX 1024 CHAR

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

STRING MAX 1024 CHAR

Name of the proxy server configured for the user.

Get-CimInstance -ClassName Win32_Proxy | Select-Object -Property ProxyServer

ServerName

STRING MAX 1024 CHAR

Name of the computer whose proxy settings are to be accessed.

Get-CimInstance -ClassName Win32_Proxy | Select-Object -Property ServerName

SettingID

STRING MAX 256 CHAR

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-Object to 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