In this directory contains the "xop2.4" package. ** IMPORTANT ** xop2.4 is under development, so this directory is not updated. We strongly recommend users to install by now xop2.3 from: http://ftp.esrf.eu/pub/scisoft/xop2.3/ **. ** INFO FOR xop2.4 USERS ** xop2.4 is embedded with idl8.x and is subject to U.S. Export Control and is categorized under Export Control Classification Number (ECCN) 5D002. To use it you need to complete and submit the "Software Application Form for XOP v2.4 and Future Releases" as instructed therein. If all export requirements are met the software will be distributed to the applicant. The user will then receive the instructions and passwords to download and install the software. The previous version xop2.3 has similar functionality and can be freely downloaded. See: http://www.aps.anl.gov/Science/Software/#synchrad