Using PS to perform a CertReq for PKI

When issuing certification request to a Root CA via a CMD window ‘certreq -submit ***.req’ , you’ll get a Certification Authority List pop-up window, that you can push ok and the request will be submitted. Trying to do the same via Powershell with

 CMD.exe certreq -submit ***.req 
it starts the execution but never completes. The pop up doesn’t display so I think its just freezing there, but I’m not sure. Any idea on how to accomplish this via Powershell? I’ve tried the -q switch and invoke-command with now luck.

Appreciate it.

**Fat finger…cmd.exe /c works like a champ…