Executing Regedit within Ant

I have a couple of small problems, what I am trying to do is install a few registry files within a certain folder with ant.. so I have a path to a folder called cdrive and when the task comes up I want to have all of the files in there be installed.. My problem is I can only do this by hardcoding the name into the arg value="" of the exec command.. I was wondering if there was an overarching way to get all of the files?

My second small problem is I am reading the path to the dir containing the files from a build.properties file.. when I do this and put in the property it throws an error saying the dir is not found.. However when I hardcode the same path into the dir of exec it works fine.. I have checked the paths and slashes many times, i am just wondering what could be throwing this off..

Thanks