ARP.LIBRARY The arp.library was created by individuals as part of the AmigaDOS Resource Project (but not affiliated with Commodore in any way) for AmigaDOS Release 1 (versions 1.2 and 1.3). Its intent was to provide additional functionality not present in AmigaDOS at that time, including the developer-friendly wildcarding functions and date<->string functions that LZX uses. All of these features (and more) were added in AmigaDOS Release 2, making arp.library redundant there. However, for users running AmigaDOS 1.2 or 1.3, arp.library provides very useful functionality for software developers.