Powershell -WindowStyle Hidden still shows a window briefly #3028

Steps to reproduce

In Windows Run dialog type this:
PowerShell.exe -WindowStyle Hidden -Command ping www.microsoft.com

Expected behavior

There should be no window, right now you can't start powershell without window flashing, making it rather useless e.g. for scheduled tasks.

Note I think this is intended behavior, but it's confusing and new option is probably required. If you search how to run a powershell in scheduled task, the go-to workaround is to do a vbs script of all things! Such as:

Dim shell,command
command = "powershell.exe -nologo -File D:\myscript.ps1"
Set shell = CreateObject("WScript.Shell")
shell.Run command,0

This is not a good thing, powershell needs this feature in the shell itself, scheduled tasks are important feature and having a window flash on scheduled task is a really bad experience.

Actual behavior

It flashes the powershell window briefly.

Environment data

> $PSVersionTable
Name                           Value
----                           -----
PSVersion                      5.1.14393.693
PSEdition                      Desktop
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
BuildVersion                   10.0.14393.693
CLRVersion                     4.0.30319.42000
WSManStackVersion              3.0
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1