COMMAND EVERYTHING.
Sends a system message to a specified user session.
PowerShell · Risk: High · Documentation VerifiedLast verified: 2026-10-26
Microsoft RemoteDesktop reference: Sends a system message to a specified user session. 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.
Send-RDUserMessage [-HostServer] <String> [-UnifiedSessionID] <Int32> [-MessageTitle] <String>
[-MessageBody] <String> [<CommonParameters>]Use an account with the target resource permissions documented for Send-RDUserMessage. Modifying administrative cmdlets may require elevation or delegated administration. This catalog does not assert that ordinary users can execute the command.
Windows / RemoteDesktop · Windows Server 2025 documentation; feature/module prerequisites apply
-HostServer (required)-MessageBody (required)-MessageTitle (required)-UnifiedSessionID (required)Windows with the RemoteDesktop module and the Windows feature or management tools that provide it. Confirm target connectivity and version compatibility using the linked Microsoft reference.
This cmdlet changes system state. Review every target and parameter in the official reference, test outside production, and prepare an appropriate backup or rollback. Do not execute the example automatically.
Send-RDUserMessage -HostServer "rdsh.contoso.com" -UnifiedSessionID 1 -MessageTitle "Message from Administrator" -MessageBody "Please save your work. You will be logged off in 10 minutes"This command sends a system message to users of the session with an ID of 1 on the host server named rdsh.contoso.com. Source: Microsoft, CC BY 4.0; transcript prompt/output removed. This example was not executed.
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