Run a PowerShell task silently

When a scheduled task runs a PowerShell script in the end user context the console window is visible. Even with the -WindowStyle Hidden flag the console window will be visible for a second or so.

VB scripts can be run in the user context with no visible window at all. When a VB script calls PowerShell.exe with -WindowStyle Hidden the brief console pop up is completely suppressed.

Set objShell = CreateObject("Wscript.Shell")

objShell.Run("powershell.exe -WindowStyle hidden -File MyScript.ps1"),0  

The secret to suppressing the console window is the ,0 at the end of the second line.
This code sample is not very flexible. A better approach is to accept the script path as a command line argument so the script can be reused.

Set objShell = CreateObject("Wscript.Shell")  
Set args = Wscript.Arguments  
For Each arg In args  
    Dim PSRun
    PSRun = "powershell.exe -WindowStyle hidden -ExecutionPolicy bypass -NonInteractive -File " & arg

To use the script create a scheduled task with wscript.exe as the command and the following argument:

<path>\PsRun.vbs <Path>\MyScript.ps1  

As shown:

The complete code can be found here: