Instructions for using a compiled Prospero client: This file is available via anonymous FTP from PROSPERO.ISI.EDU in pub/prospero/compiled-clients/INSTRUCTIONS. We are experimentally providing an already compiled Prospero client for those interested in testing the Prospero menu browser. You can get the full Prospero distribution via anonymous FTP from PROSPERO.ISI.EDU in pub/prospero/prospero.tar.Z or pub/prospero/prospero-new.tar.Z. The menu browser client we are providing here is only available in the prospero-new distribution, since it is still not robust enough to be included in the Prospero beta release. At the moment, the only compiled Prospero client available is on the Sun 4, under SunOS 4.1.3. To get the client, open an anonymous FTP connection to the directory pub/prospero/compiled-clients on the host PROSPERO.ISI.EDU. Go into the appropriate subdirectory for your system architecture and operating system (this will always be sun4.SunOS4.1.3 for now). Get the files 'menu' and 'vcache'. Put them somewhere you can run them. Set the environment variable P_BINARIES to the name of the directory where the 'vcache' program is located. (vcache is an auxiliary program that does much of the work of file retrieval.) Type 'menu' to run the menu browser. It will display the default starting menu we provide in the prototype virtual system. IF you run the menu client with the -D9 option, the Prospero protocol messages the client sends and receives will be displayed for you. If you are interested in the Prospero protocol, you may find it particularly interesting to see how we represent searches; go into the 'Online Databases' directory of the root and pick the item 'archie FTP database at SURAnet', and look at the attributes that were sent across associated with that link. A bit of documentation on the menu browser is available in the Prospero user's manual (pub/prospero/doc/prospero-user-manual.PS.Z, from PROSPERO.ISI.EDU). The next version of the menu browser will support modification of virtual systems. Bugs to bug-prospero@ISI.EDU, information requests to info-prospero@ISI.EDU.