Trouble with /info

I'm having trouble with dopusrt.exe and /info. No matter what I try I can't get it to output anything. I am trying the absolute most basic commands with it. For instance:

"C:\Program Files\GPSoftware\Directory Opus\dopusrt.exe" /info filelist.xml,paths

Yet this writes nothing to disk. I have a lister open. I am running the dopusrt command from an Administrator command prompt.

What am I doing wrong?

Try giving a full path (not just filename).

Using a non-admin command prompt may also be required.

Thanks Leo. I got it working with your suggestions. It doesn't care about having a full path but it seems to require a non-admin command prompt. All sorted now.