Because of the wide spread usage of dCache in the grid word, we provide the dCache binary packages mainly for a certain Linux flavour complaint to the rest of the WLCG, gLite or OSG software. The dCache system itself is, except for the filesystem engine (pnfs) and the dCap client, pure Java, so that a port should be easy as long as the OS is coming with a resonably modern Java virtual machine. For now dCache is fine with Java 1.5. This chapter should give an estimate on how much effort is necessary to do the porting to other operating systems.