With increased awareness of the project, LucasArts sent a cease & desist letter to the project, believing they were using some of LucasArts' proprietary code. Brown worked over the next four years with LucasArts' legal representatives to explain the nature of the emulator and the source of their information to demonstrate that what they had created was legal. Brown considered that LucasArts was trying to be accommodating as "ScummVM" helped to raise interest in these titles. They ultimately came to a legal agreement to allow "ScummVM" to continue to be developed.