Interactive mode not working when specifying user and pasword

The following command works with psexec but not paexec:

```
psexec64 remote-pc -u username -p password -d -i 2 cmd

paexec remote-pc -u username -p password -d -i 2 cmd
```

No app is launched on the user account as interactive in this case.

It does seem to work if running as SYSTEM:

```
paexec remote-pc -s -d -i 2 cmd
```