ABSTRACT TSXLIB is a library of FORTRAN callable routines that implement the TSX-Plus system services which are unique to TSX-Plus. The library has been updated to include all TSX-Plus unique services through TSX-Plus V6.40. Like RT-11, TSX-Plus offers the MACRO-11 programmer a number of system services. These services are implemented via both the RT-11 programmed requests (for those services common to both RT-11 and TSX-Plus) and raw EMT instructions (for those unique to TSX-Plus). RT-11 makes its system services available to the FORTRAN programmer through the system subroutine library, SYSLIB. TSX-Plus also honors the bulk of the service requests in the SYSLIB routines. TSXLIB, however, makes the TSX-Plus unique EMTs available to the FORTRAN programmer. These TSX-Plus library routines provide facilities to support communication lines, detached jobs, device allocating and deallocating, file structured device mounting and dismounting, communication between running programs, job privileges control, job status monitoring, program performance analysis, real time program execution, shared run time systems, shared files, special files information, spooler control, subprocess control, system status information, communication between running programs and a terminal, program control of the terminal, ODT activation mode, user name control, windowing, and several miscellaneous EMTs. The TSXLIB distribution kit includes the MACRO-11 source modules for all the routines, a user's manual in machine readable form, an indirect command file to build the library, and the implemented library. The FORTRAN sources for some test programs are also included. These test programs have been executed either with F66 or F77, and in some instances with both. N. A. Bourgeois, Jr. NAB Software Services, inc. PO Box 20009 Albuquerque, NM 87154 18-May-89