Defines an instance transform for your product.
Id (String, required) : The identity of the instance transform. This value will define the name by which the instance should be referred to on the command line. In addition, the value of the this attribute will determine what the value of the property specified in Property attribute on InstanceTransforms will change to for each instance.
ProductCode (AutogenGuid, required) : The ProductCode for this instance.
ProductName (String) : The ProductName for this instance.
UpgradeCode (Guid) : The UpgradeCode for this instance.