Can not sign in yahoo massenger

SOURCE: sign in problem in yahoo messenger

My yahoo mesengger can't sign in..Sign in problem..can u check...

SOURCE: cannot sign in yahoo messenger

It may have 2 problems and 2 solutions:-

Firstly, this error occurs when your connection preferences are notproperly set. I'm not talking about your Yahoo! ID and Password here,but you may need to adjust certain features depending on what networkyou're on. Let's says for example, if a firewall protects your network,it may block yahoo messenger when it tries to connect to the server.You need to change your connection settings, click the Messenger menuin yahoo messenger and select Connection Preferences. Select FirewallWith No Proxies. Select your Internet Connection type from thepull-down menu at the bottom and enter your Home Country if theseoptions aren’t grayed out. Click OK and login again using the newsettings.If this option doesn’t work, click Connection Preferences inYahoo! Messenger again and select No Network Detection. Try to loginagain using the new settings. In some instances, you may need toprovide yahoo messenger with the IP address of your firewall or proxyserver (you can get this information from your network administrator orfrom your Internet service provider). Click Messenger and selectConnection Preferences again. Select Use Proxies. Enable either theHTTP Proxy or the SOCKS Proxy as needed and provide the proper address.Click OK and login again using the new settings.

Secondly, if you are using IM9 there are sign in problems. This is whatyahoo has to say.Try an updated version of Yahoo! Messenger 9.0(9.0.0.2128). This latest build includes a fix for the sign-in issuesthat have been affecting some users. If you were seeing an error code“81003005” when trying to sign in, this latest version may fix thatproblem. Even if you were experiencing a different kind of sign-inissue, I recommend installing this latest version.

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SOURCE: application error occuring to install or remove yahoo massenger?

You need the following OS to support Messenger
Windows 2000 / XP / 2003 / Vista / XP64 / Vista64 / Windows7
If that is not an issue read on.

The problem is probably due to a mal-function of the uninstall software.The Yahoo Messenger uninstall software is notorious for leaving files and fragments behind creating conflicts with the incoming software
Close all programs when uninstalling / downloading and uploading.
If you tried to uninstall the old Yahoo Messenger program from the Control Panel and failed to back it up with a visit to the 'C' drive, you may have old software conflicting with the incoming software trying to share the same folder.
If you have Vista the whole Messenger folder should have been removed during the uninstall.
Check
Start > Computer >> Local drive (C) >> Program Files >> Yahoo >> Messenger. - The Messenger folder should have been deleted and not seen. If the Messenger folder is still visible - delete it.

If you have a pre-Vista OS, the Messenger folder remains, and inside, only one sub-folder should be seen. This is the 'Profile' folder and contains all the message history. All other software should have been deleted.

Manually delete any other folders and files before moving on

Download 'ccleaner' and run it through a couple of times,using the factory settings and the 'Run Cleaner' control until 0 bytes are seen to be cleaned following a scan
Run the 'Registry' from the left hand toolbar but 'Save' any changes after opting to 'repair' errors.
http://www.filehippo.com/download_ccleaner/

Re-start your computer and download Yahoo Messenger from here.

http://www.filehippo.com/download_yahoo_messenger/

Failure to initialize error message persisting? try this download site
http://download.yimg.com/ycs/msg/dl/msgr10/us/ymsgr1000_525_us.exe