The feature of saving and uninterrupted viewing of all the messages that have been sent and received through an email service is a very basic of a feature and is generally provided by various mail services, yahoo is however much more advanced as compared to other maul services then that advancement further makes this feature more obvious for being available to the user.
If we get into the security purposes of the yahoo users then we can say that the yahoo chat history is only accessible to the owner if that particular yahoo account owner. As the chat history is something that cannot be accessed without logging in yahoo account and the yahoo account can only be accessed through the yahoo ID and password and that is something that the yahoo users are generally advised to keep protected and confidential.
So, as per the information given above, there is no way out to get into the yahoo messenger chat history of anyone or even of your own without following the process of yahoo login. However, if it is about the checking or viewing of the yahoo messenger archived chat history then for that the user will have to get the tool downloaded, and then the user will be able to check the chat history on any computer from any corner of the world.
But for that also the user will, first of all, have to login yahoo mail ID and password on the official yahoo login page then from the browser the user will have to get the yahoo archive manipulator tool downloaded. With the help of the downloaded tool, the user can easily get access to the chat history by clicking on the particular contact in the left pane that is to be checked.
Other than this there is also another more simple way for checking the yahoo chat history and that is log in to the yahoo mail account through the web after that the user needs to click in the conversation section that is given in the left pane. If any more help is needed regarding the workings of the yahoo mail then for that the user should get in touch with the certified yahoo mail technicians they are available at the service of the users 24*7 the best way to get in contact with them is through yahoo mail care. Other than that the experts are also available for help at online chats and emails.