MBX, UTILITIES, Work with mailboxes from DCL without programming MBX is a utility that allows to work with mailboxes from DCL. It features a new DCL command that can create, delete, attach, detach, write to, and read from mailboxes. MBX also features a callable interface (a.k.a. API) so that programmers can use the same mechanism from within their programs, without having to write cumbersome system calls. This API is available as an upward-compatible shareable image. The kit contains a definition of the six service calls in pascal environment format, and in SDL syntax. The package contains the DCL command definition, the executables, an addition for the VMS help library, and documentation. The MBX utility is packaged as a PCSI kit or VMSINSTAL save-set for OpenVMS Alpha, and as a VMSINSTAL save-set only for OpenVMS VAX. The file MBX.MEM contains the installation instructions. It can be printed on any ascii printer. Program sources (Pascal, Macro, SDL, CLD, and Message) are in the SRC subdirectory. To build the executables, copy the contents of the SRC subdirectory to an empty directory of your system, set default to this directory, and execute the procedure BUILD.COM. For a successful build, you will need a full VMS installation (i.e. with the library and optional components installed), the DEC Pascal compiler (another one most probably won't work) and the SDL V3.2 package from the freeware CD. The build has been tested under OpenVMS Alpha V6.2 and under OpenVMS VAX V5.5-2, with DEC Pascal V5.6. Earlier versions might work but have not been tested. To use the package, the base VMS only is enough; earliest possible versions are OpenVMS Alpha V6.2 or OpenVMS VAX V5.5-2. More recent versions have not been tested but should be OK. Constructive comments and suggestions about this package are welcome at Marc.Vandyck@Skynet.Be .