Uninstalling Vox Studio is easy:
From Windows click Start/Settings/Control Panel/Add-Remove Programs. In the list select Vox Studio and click on Add/Remove.
This will remove Vox Studio but will not remove the other settings, files, folders and preferences you created after installing Vox Studio. If you want to remove these too, delete all files from your Vox Studio program directory and its subfolders (if any). Also remove the subdirectories containing your sound files if you no longer need them.