Parallels license products enumeration.

enum _PRL_PRODUCT_ENUM {
  PRL_PRODUCT_ANY = 0,
  PRL_PRODUCT_DESKTOP = 1,
  PRL_PRODUCT_SERVER = 2,
  PRL_PRODUCT_WORKSTATION = 3,
  PRL_PRODUCT_STM = 4,
  PRL_PRODUCT_PLAYER = 5,
  PRL_PRODUCT_DESKTOP_WL = 6
};