Remote Powershell connect

[setixx]

Hi,
how can i build an external application to connect to a remote Windows Server via powershell?

with the powershell command:

Enter-PSSession -computername servername -credential domain\user  you can connect to a remote server

In external Application I try :
Dateiname: C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
Arbeitsverzeichnis:

Argumente: Enter-PSSession -Computername %computername% -credential domain\user

and no option

When i Connect to a server i can type my Credentials but then the Powershell windows Closed

Thank you for your help