... UTF8toUTF16( LPCSTR utf8 ); In compiling with Borland, there was no problem on MyCoCreateInstance(), -IKTPCBizX_New, And, error happend with IKTPCBizX_LogIn. But, in compiling with MSVC, there was error in MyCoCreateInstance(), -IKTPCBizX_New,... Please kindly advise to me.. ...