logmein seems better. it does not need more steps from remote si

You can login remote side any time as long as remote PC is online. My parents do not know how to send me a request from MSN. Thanks for the suggestion anyway. I do not have problem to remote control their PC. What I am worried is in case I do not have way to login on their PC or something wrong so their PC is not able to online. onekey restore seems a good idea for this case. Thank you all the suggestions.