twl ...\cmd.exe ...\DEBUG.EXE ...\LINK.EXE ...\MASM.EXE ...\ML.ERR ...\ML.EXE ...\tan.asm ...\TAN.EXE ...\tan.obj ...\tan1.asm ...\TAN1.EXE ...\tan1.obj ...\tan2.asm ...\TAN2.EXE ...\tan2.obj