R-code is the intermediate language to which ABL source is compiled. Once ABL has been converted to r-code, it can be run across different platforms using the ABL Virtual Machine (AVM). The AVM is the environment where ABL applications are executed. The AVM has its own directory path list, called the PROPATH, to define the directories to search and the search order when running ABL code. For more information see R-code Features and Functions.