Usage: Per normal class restrictions.
Cursed Swords and Weapons
Penalty: Cursed weapons specify a penalty that is applied to both attack rolls and damage rolls made with the weapon.
Discarding: Once the weapon has been used in combat, the character comes under the curse and is not able to discard the item. In fact, they will favour the weapon and use it whenever possible. The curse can only be removed with magic.
Enchanted Swords and Weapons
Bonus: Enchanted weapons specify a bonus that is applied to both attack rolls and damage rolls made with the weapon.
Bonus vs creature type: Some weapons have a special bonus when used against a certain type of creature.