Hi, This is the source for a basic C run-time library. The library is mostly ansi; some work is required to interface file/Io and memory management functions in with the underlying operating system. See the files in MSDOS/386 for example code showing how to interface the RTL into DOS using a DPMI subsystem (in this case TRAN's PMODE 3.07). This RTL has suitable code for both the 386 and the 68K processors. Most of the code is in C but some of it (notably string handling functions) were written in assembly for speed. This RTL is a companion file to the two files: ccdl139e.zip - C compiler executables with DOS libraries (for DOS) ccdl139s.zip - C compiler sources Which should also be available on the distribution site you got this from. Read the LICENSE.TXT file for redistribution information. See license.txt for licensing information. David Lindauer 1428 Hepburn Ln. Apt #1 Louisville, KY 40204 email: gclind01@starbase.spd.louisville.edu