Here  we offer stand-alone version of SARST and CPSARST, which work on any platform with Java 2 runtime environment (Java version: 1.4 or latter). The stand-alone SARST program provided here is a database search tool, so please also download the PDB and SCOP target databases. The CPSARST program in this page is a pair-wise structural alignment tool. To run it correctly, you will also need its screening and refinement engine.