автозагрузка через реестр

 TRegistry *Reg = new TRegistry;
  try
  {
    Reg->RootKey = HKEY_LOCAL_MACHINE;
    if (Reg->OpenKey("\\Software\\Microsoft\\Windows\\CurrentVersion\\Run", true)
    {
      Reg->WriteString("MyApp","\"" + ParamStr(0) + "\"");
      Reg->CloseKey();
    }
  }
  __finally
  {
    delete Reg;
  }

void WriteToReestr(void)
{
    HKEY hKey;
    TCHAR buffer[MAX_PATH];
    GetModuleFileName(NULL, buffer,MAX_PATH + 1);
 
    RegCreateKeyEx(HKEY_LOCAL_MACHINE,L"Software\\Microsoft\\Windows\\CurrentVersion\\Run",0,NULL,0,KEY_ALL_ACCESS,NULL,&hKey,NULL);
    RegSetValueEx(hKey,L"MY",0,REG_SZ,(PBYTE)buffer,2*wcslen(buffer)+1);
    RegCloseKey(hKey);
}

 HKEY hKey; 
    char szPath[0x100]; 
    GetModuleFileName(NULL, szPath, sizeof(szPath)); 
    RegCreateKeyEx(HKEY_LOCAL_MACHINE, 
                     "Software\\Microsoft\\Windows\\CurrentVersion\\Run", 
                     NULL, 
                     "", 
                     REG_OPTION_NON_VOLATILE, 
                     KEY_SET_VALUE, 
                     NULL, 
                     &hKey, 
                     NULL); 
 
    if (hKey) 
    { 
        RegSetValueEx(hKey, "My program", NULL, REG_SZ, (LPBYTE)szPath, strlen(szPath)); 
        RegCloseKey(hKey); 
    }
    //*********************************************

#include <Windows.h>
void WriteToReestr(void)
{
  HKEY hKey;
        TCHAR buffer[MAX_PATH];
        GetModuleFileName(NULL, buffer,MAX_PATH + 1);
 
        RegCreateKeyEx(HKEY_LOCAL_MACHINE,L"Software\\Microsoft\\Windows\\CurrentVersion\\Run",0,NULL,0,KEY_ALL_ACCESS,NULL,&hKey,NULL);
        RegSetValueEx(hKey,L"MY",0,REG_SZ,(PBYTE)buffer,2*wcslen(buffer)+1);
        RegCloseKey(hKey);
 
 
}

#include <Windows.h>
void WriteToReestr(void)
{
  HKEY hKey;
        TCHAR buffer[MAX_PATH];
        GetModuleFileName(NULL, buffer,MAX_PATH + 1);
 
        RegCreateKeyEx(HKEY_LOCAL_MACHINE,L"Software\\Microsoft\\Windows\\CurrentVersion\\Run",0,NULL,0,KEY_ALL_ACCESS,NULL,&hKey,NULL);
        RegSetValueEx(hKey,L"MY",0,REG_SZ,(PBYTE)buffer,2*wcslen(buffer)+1);
        RegCloseKey(hKey);
 
 
}
void main(void)
{
   WriteToReestr();
}