How to make a computer at the same time it can only visit a QQ?

Users questions: So, I have a computer, many people hang QQ, confused the computer reflects the slow, he is unable to say anything, I think there a way to get about, so that the computer can log on at the same time on a QQ No.? As long as the QQ number (no matter who's number, any) online, no longer registered Miss the second number. So they can manage well, so that they can in the time machine next to a number linked to their own, instead of hanging a lot of numbers for a walk trouble (who gave him off they will be satisfied with these numbers ...) influence others to use a computer.
Experts answer: QQ numbers can not be registered for the specified Lu (simple and practical!!!) My friend always used my computer on the QQ, is why they think this way "against" their: in xp system, if you want a certain number can not login, 1st, first open the control panel Select Folder Options View tab, the contents of the Use simple file sharing, in front of The hook removed and then OK. 2, QQ directory manually create a folder inside the folder name is the number that do not want to visit, right-click this folder, select Properties. In the Security tab inside the permissions to write to refuse, then OK, and then you try this number in the landing, always Not on the landing. If you want to log into that folder, delete the on it.
  • This information provided by the users.Thanks!