can't hit enter: Hspice

I am trying to run Hspice remotely while I'm at home. When I type "hspice xxx.sp >! xxx.lis &" the command window shows "[1] 918". Usually at school I would then hit enter so that it would finish. but i can't hit enter using winscp because it doesn't allow you to execute a blank command line. Is there anyway around this? Thanks.
-Kyle

The purpose of "&" is to say "I want to do something else at the same time". If all you are wanting to do is one thing, you don't need to use the &.

Also, note that in general you CANNOT do anything that requires user input using WinSCP. If you really need to, use putty or another ssh client.