侯洁的深入浅出MFC中MFCCON.CPP编译的一个问题。

[flyingzerg]

在2000DOS提示符下打命令CL /MT MFCCON.CPP出错结果是
/out:mfccon.cpp
mfccon.obj
LINK:warning LNK4089:all refererces to "ADVAPI32.dll"discard by /OPT:REF
LINK:warning LNK4089:all refererces to "SHELL32.dll"discard by /OPT:REF
请问高手这是怎么回事？
还有我在VC6.0调试GENERIC.C时也通不过这是怎么回事呀出错提示如下：
LIBCD.lib(crt0.obj) : error LNK2001: unresolved external symbol _main
Debug/GENERIC.exe : fatal error LNK1120: 1 unresolved externals
Error executing link.exe.

GENERIC.exe - 2 error(s), 0 warning(s)
刚开始学就这么打击我太郁闷了。肯请高手帮忙呀！谢谢！