MSIR.0662 Version of Fast/Unload does not support (capability)
This message indicates that you are using a version of Fast/Unload for the Fast/Unload User Language Interface which might be unusable with the current configuration of your Model 204. This is a warning message but it is saved in the VIEW ERRORS table, and it is sent to the operator's console, since it might indicate a failure later on in the online when a user attempts to use the $FUNLOAD function.
To correct this error, use a newer version of Fast/Unload which supports the capability shown in the message as capability.