Posting a cart image of the MG Explorer along with source files. Was fun going back into 33 year old code but time to move to next project. Many thanks to Jon Guidry for his project support and to Fred Kaal for his support and for the generous use of his loader code. Fred, your ModuleCreator is great! Thanks for coding that and Jon, you've had infinite patience helping me, thank you. MGEXP.bin HFE.zip DSK.zip