File list (Check if you may need any files):
C_Common_Use
............\ABC
............\...\0_TO_100.C
............\...\3_MSGS.C
............\...\BIT_AND.C
............\...\BIT_INV.C
............\...\BIT_OR.C
............\...\BIT_XOR.C
............\...\CHAR_OUT.C
............\...\COMMENT.BAK
............\...\COMMENT.C
............\...\COMMENT2.C
............\...\CON_VOWL.C
............\...\DO_MENU.C
............\...\EQL_NEQL.C
............\...\EXP_FMT.C
............\...\EXP_OUT.C
............\...\FIRST.C
............\...\FLOATOUT.C
............\...\FLT_FMT.C
............\...\FLT_PT.C
............\...\FOR_2VAR.C
............\...\FOR_DIFF.C
............\...\FOR_DOWN.C
............\...\FOR_MORE.C
............\...\FOR_TEST.C
............\...\FULL_FMT.C
............\...\GOTO_100.C
............\...\HARDREAD.C
............\...\INFINITE.C
............\...\INTOUT.C
............\...\INT_FMT.C
............\...\ITEM.C
............\...\LEFTJUST.C
............\...\LONGOUT.C
............\...\MATH.C
............\...\MODULO.C
............\...\NEAR_FAR.C
............\...\NOOUTPUT.C
............\...\NO_CONT.C
............\...\NO_PRINT.C
............\...\NO_STDIO.C
............\...\OCT_HEX.C
............\...\ODD_EVEN.C
............\...\ONE_LINE.C
............\...\OVERFLOW.C
............\...\POSTPRE.C
............\...\PRECISE.C
............\...\PREPOST.C
............\...\PRINTFOK.C
............\...\PRT_CNT.C
............\...\PTR_OUT.C
............\...\ROTATE.C
............\...\SHIFTEM.C
............\...\SHOWSIGN.C
............\...\SHOW_OH.C
............\...\SIZEOF.C
............\...\STR_OUT.C
............\...\SWT_MENU.C
............\...\SYNTAX.C
............\...\TWO_LINE.C
............\...\UPPERERR.C
............\...\USEBREAK.C
............\...\U_INTOUT.C
............\...\VOWELS.C
............\...\WAIT_YN.C
............\...\ZERO_PAD.C
............\ADVANCED
............\........\1_10LIST.BAK
............\........\1_10LIST.C
............\........\BLD_1_10.BAK
............\........\BLD_1_10.C
............\........\CHILD.C
............\........\CHK_MATH.C
............\........\COMPACT.C
............\........\COUNTDOS.BAK
............\........\COUNTDOS.C
............\........\CTRLBRK.BAK
............\........\CTRLBRK.C
............\........\CTYPE.C
............\........\DBL_1_10.BAK
............\........\DBL_1_10.C
............\........\ERR_MSG.C
............\........\ERSIMPLE.BAK
............\........\ERSIMPLE.C
............\........\EXECL.C
............\........\EXECLPE.C
............\........\EXECVPE.C
............\........\FASTCALL.BAK
............\........\FASTCALL.C
............\........\FILELIST.C
............\........\GENINTR.C
............\........\GETPID.C
............\........\GET_VECT.C
............\........\LONGJMP.C
............\........\NOPRTSCR.C
............\........\OS_VER.C
............\........\PSP_ADDR.C
............\........\REMOVE5.C
............\........\REMOVE_7.C