Each API is for different uses. Each one also requires that you use the correct deallocation/freeing function when you’re done with the memory. VirtualAlloc A low-level, Windows API that provides lots of options, but is mainly useful for people in fairly specific situations. Can only allocate memory in (edit: not 4KB) larger chunks. There are … Read more
If you want plain C exports, use a C project not C++. C++ DLLs rely on name-mangling for all the C++isms (namespaces etc…). You can compile your code as C by going into your project settings under C/C++->Advanced, there is an option “Compile As” which corresponds to the compiler switches /TP and /TC. If you … Read more
This example shows how to go directly to the Windows API and not link in the C Standard Library. global _main extern _GetStdHandle@4 extern _WriteFile@20 extern _ExitProcess@4 section .text _main: ; DWORD bytes; mov ebp, esp sub esp, 4 ; hStdOut = GetstdHandle( STD_OUTPUT_HANDLE) push -11 call _GetStdHandle@4 mov ebx, eax ; WriteFile( hstdOut, message, … Read more
Microsoft now has a knowledge base article called Windows SDK Fails to Install with Return Code 5100 that describes this problem and its fix: This issue occurs when you install the Windows 7 SDK on a computer that has a newer version of the Visual C++ 2010 Redistributable installed. The Windows 7 SDK installs version … Read more