Linker Tools Error LNK1306

DLL entry point function cannot be managed; compile to native

DllMain cannot be compiled to MSIL; it must be compiled to native.

To resolve,

The following sample generates LNK1306.

// LNK1306.cpp
// compile with: /clr /link /dll /entry:NewDllMain
// LNK1306 error expected
#include <windows.h>
int __stdcall NewDllMain( HINSTANCE h, ULONG ulReason, PVOID pvReserved ) {
   return 1;