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Get-SmbOpenFile

Retrieves basic information about the files that are open on behalf of the clients of the SMB server.

Last verified: 2026-10-26

Microsoft SmbShare reference: Retrieves basic information about the files that are open on behalf of the clients of the SMB server. The syntax and selected example below are adapted from the pinned Windows Server 2025 reference. Module availability, target configuration and delegated permissions determine whether it can run in your environment. Documentation and parameter text: Microsoft, CC BY 4.0; formatting adapted by Cmdlet World. No execution testing is claimed.

Get-SmbOpenFile [[-FileId] <UInt64[]>] [[-SessionId] <UInt64[]>] [[-ClientComputerName] <String[]>]
 [[-ClientUserName] <String[]>] [[-ScopeName] <String[]>] [[-ClusterNodeName] <String[]>] [-IncludeHidden]
 [-SmbInstance <SmbInstance>] [-CimSession <CimSession[]>] [-ThrottleLimit <Int32>] [-AsJob]
 [<CommonParameters>]

Required permissions

Use an account with the target resource permissions documented for Get-SmbOpenFile. Modifying administrative cmdlets may require elevation or delegated administration. This catalog does not assert that ordinary users can execute the command.

Supported environments

Windows / SmbShare · Windows Server 2025 documentation; feature/module prerequisites apply

Parameters

-AsJob

Runs the cmdlet as a background job. Use this parameter to run commands that take a long time to complete.

-CimSession

Runs the cmdlet in a remote session or on a remote computer. Enter a computer name or a session object, such as the output of a New-CimSession or Get-CimSession cmdlet. The default is the current session on the local computer.

-ClientComputerName

Specifies the filters for the returned open files so that only files opened from the specified client computer are returned.

-ClientUserName

Specifies the name of the user whose open files are retrieved.

-ClusterNodeName

Specifies, in the case of a share hosted by a windows cluster, the name of the server which hosts the open files that are retrieved.

-FileId

Specifies the file identifier (ID) of the file for which the information is retrieved.

-IncludeHidden

Indicates that handles that are created and used internally are enumerated also.

-ScopeName

Specifies the scope of the open files that are retrieved.

-SessionId

Specifies a session ID. This cmdlet returns only files that have been opened in the specified session.

-SmbInstance

Specifies the input to this cmdlet. You can use this parameter, or you can pipe the input to this cmdlet.

-ThrottleLimit

Specifies the maximum number of concurrent operations that can be established to run the cmdlet. If this parameter is omitted or a value of 0 is entered, then Windows PowerShell® calculates an optimum throttle limit for the cmdlet based on the number of CIM cmdlets that are running on the computer. The throttle limit applies only to the current cmdlet, not to the session or to the computer.

Prerequisites

Windows with the SmbShare module and the Windows feature or management tools that provide it. Confirm target connectivity and version compatibility using the linked Microsoft reference.

Security considerations

This is a read-oriented cmdlet; protect any sensitive results and check the documented effects of your selected parameters.

Examples

Get-SMBOpenFile

Sources

https://github.com/MicrosoftDocs/windows-powershell-docs/blob/b7645dd8c687139b28e845119da30ec670526507/docset/winserver2025-ps/SmbShare/Get-SmbOpenFile.md

https://learn.microsoft.com/powershell/module/smbshare/get-smbopenfile?view=windowsserver2025-ps

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