You should NEVER call the forget command directly for an instance of a Lingo Xtra. Director automatically calls forget when an instance of an Xtra needs to be disposed; calling forget yourself can lead to memory leaks or crashing.
Use the following syntax to explicitly get rid of a PrintOMatic Lite document object when you are done using it:
set doc = 0
Where doc is the PrintOMatic Lite document object you want to dispose of. Explicitly disposing of document objects is optional, since Director will automatically get rid of the object when it’s no longer referenced anyway.