run-time system

from The Free On-line Dictionary of Computing (8 July 2008)

run-time system
run-time support

   <programming> (RTS, run-time support, run-time) Library code
   and processes which support software written in a particular
   language running on a particular {platform}.  The RTS
   typically deals with details of the interface between the
   program and the {operating system} such as {system calls},
   program start-up and termination, and {memory management}.

   (1999-07-26)