what's wrong with following message?--------------------

Compiling resources...
D:\Program Files\Microsoft Visual Studio\VC98\MFC\INCLUDE/afx.h(15) : error RC2188: #error : MFC requires C++ compilation (use a .cpp suffix)
D:\Program Files\Microsoft Visual Studio\VC98\MFC\INCLUDE/afxver_.h(130) : error RC2188: #error : Please use the /MD switch for _AFXDLL builds
D:\Program Files\Microsoft Visual Studio\VC98\MFC\INCLUDE/afxver_.h(134) : error RC2188: #error : Please use the /MD switch (multithreaded DLL C-runtime)
D:\Program Files\Microsoft Visual Studio\VC98\MFC\INCLUDE/afxv_cpu.h(14) : error RC2188: #error : afxv_cpu.h is only for MIPS R4000, DEC AXP, and IBM PowerPC builds
RC : fatal error RC1116 : RC terminating after preprocessor errors
Error executing rc.exe.

Monapp.exe - 5 error(s), 0 warning(s)

In fact I could compile and execute the Monapp, but after I copied the whole app file to another folder, it won't work anymore. and when I "build all" , got above message.. did you meet this before?
Can you help me out?

thanks.