Parece ser um componente específico do Splunk, pelo menos de acordo com o blog deles: link
My final advice is on errors. We now have two PowerShell hosts, each with different requirements. When installed on a standard Windows Server 2008R2 host with no updates, only PowerShell2.exe will be running because the .NET Framework 4.5 is not available. You will see errors in the splunkd.log pertaining to the inability to start the PowerShell.exe. In a similar manner, when installed on a standard Windows Server 2012 host, only PowerShell.exe will be running because the .NET Framework 3.5 is not available.
Observe que esse é provavelmente um host do PowerShell e não o próprio tempo de execução:
You can host Windows PowerShell in your application. The host application can define the runspace where commands are run, open sessions on a local or remote computer, and invoke the commands either synchronously or asynchronously based on the needs of the application.
Portanto, é um componente do Splunk e não faz parte do sistema. Eles apenas escolheram para nomear powershell2.exe
. Eles poderiam ter nomeado cmd.exe
ou explorer.exe
se quisessem .