if (DOWNLOAD_SIZE>5*1024*1024) flag=flag and 1
if (PROVIDER="Microsoft") flag=flag and 1
if (!OPEN_SOURCE) flag=flag and 1
if (!PROVIDES_NON_INSTALLER_VERSION) flag=flag and 1
if (REQUIRES_BIG_BLOATED_LIBS_TO_RUN) flag=flag and 1
if (flag) and (not required) {
	abort_download();
}