Tom Wolf asks for a msdos C compiler.
I remember having seem one years ago on Simtel-20.army.mil, called
PCC, for Portable C Compiler. It may do.
However if you want a *good* C compiler, then you should try GCC,
the C compiler from the GNUish project.
You can get it from several sites:
vulcan.phyast.pitt.edu[220.127.116.11], in pub/pc/gnudos
ocf.berkeley.edu [18.104.22.168], in pub/GNU/gnuish-msdos
wsmr-simtel20.army.mil [22.214.171.124], in pd2:<msdos2.gnuish>
funic.funet.fi [126.96.36.199], in pub/msdos/gnudos.
J. R. Valverde