Methods and apparatus, including computer program products, relating to transferring data in a diverse file system landscape. In one general aspect, a computer program product can cause a data processor to extract a first one or more file system objects from a self-extracting program, where the first file system objects include file system objects converted from a first type of file system object of a first file system to a second type of file system object of a second file system; and convert the first file system objects to file system objects in the first file system. The second file system can store file system objects of the second type and cannot store file system objects of the first type. The file systems can be the library and root file systems of IBM's iSeries computing system, and the self-extracting program can initiate execution of an Integrated Language Environment program.