registry

hvorfor kan jeg ikke få følgende kode til at virke:
void readConfiguration()
{

    HKEY key;
    DWORD dummy;
    DWORD type = REG_DWORD;
    DWORD size = sizeof(DWORD);
    DWORD value = 0;
    RegCreateKeyEx(HKEY_LOCAL_MACHINE, \"Software\\\\Test\", 0, NULL, 0, 0, NULL, &key, &dummy);
    RegQueryValueEx(key, \"minKey\", NULL, &type, (PBYTE)&value, &size);
    RegCloseKey(key);
}

void writeConfiguration()
{
    HKEY key;
    DWORD dummy;
    DWORD value = 12345;
    RegCreateKeyEx(HKEY_LOCAL_MACHINE, \"Software\\\\Test\", 0, NULL, 0, 0, NULL, &key, &dummy);
    RegSetValueEx(key, \"minKey\", 0, REG_DWORD, (PBYTE)&value, sizeof(DWORD));
    RegFlushKey(key);
    RegCloseKey(key);
}