Executing .vbs scripts with Ant

I'm trying to generate a .bat file for our QA group that after the Ant build is run, testers can run which silently removes the previous version of our software and then silently installs the latest. I had done this previously with a .vbs script.
Is there a way to run a .vbs script with Ant? If so, how can I pass variables like buildnumber to it?
Note that I did try to do this through the 'script' task calling a javascript app that I had created, but the ant implementation of this doesnt appear to support an 'ActiveXObject' which is required to modify/create files.