VS.NET /rebuild option

[ZooTroy]

I am trying to set up a VS.NET step to rebuild my project.
I entered the solution name and configuration. I added /rebuild in the command line field on the options tab. When I build the step I get the following output:
"Pre-processing...

Building...

Microsoft (R) Development Environment Version 7.10.3077.
Copyright (C) Microsoft Corp 1984-2001. All rights reserved.
Invalid Command Line.
Usage:
devenv [solutionfile | projectfile | anyfile.ext] [switches]

You can invoke...

Build successfully completed."

The same thing happens when I attempt to do a clean.
The solution build correctly when I don't add any additional values to the command line.

BTW, this worked for a VC6 step.

Thanks in advance.