A new version of Virtual Guitar Amp II is available now from Studio Devil. This new release fixes an important Tremolo Switch bug, and provides Pro Tools RTAS support on PC.
If you already use VGA II on the PC, uninstall your original version first, then install this new release. Mac users can simply install the new version, which will overwrite your old VGA II.
Those new to VGA II who already own VGA 1.x or Amp Modeler Pro, can get VGA II for $29. New users can purchase VGA II for $79.