View Compilation Error

0_0_3141874_23971.cpp:4:16: dos.h: No such file or directory
0_0_3141874_23971.cpp: In function `int create(char*, int (*)(), int)':
0_0_3141874_23971.cpp:46: error: `FP_SEG' undeclared (first use this function)
0_0_3141874_23971.cpp:46: error: (Each undeclared identifier is reported only once for each function it appears in.)
0_0_3141874_23971.cpp:47: error: `FP_OFF' undeclared (first use this function)