"C:\PROGRAM 1\Yahoo\Messenger\YahooMessenger.exe The application has failed

Firstly uninstall your Yahoo! Messenger and re-install it.

Hi,

Please reinstall the application.

Try to remove yahoo messenger and re-install it again.
If you can't uninstall it try this:
1) Log out of Yahoo Messenger and close yahoo messenger completely [ it should not be running under task manager as a process ]. 2) Open Start Menu >> Control Panel. 3) Double-click on Add or Remove Programs. 4) Locate Yahoo Messenger in Add or Remove Programs. 5) Click Change/Remove button. 6) Restart your computer, if it doesn't restart it automatically. 7) Open Yahoo folder in Program Files (C:\Program Files\Yahoo) and delete it. 8) Open registry through Start Menu >> Run and type regedit now navigate to the HKEY_CURRENT_USER\ Software\ registry entry, delete Yahoo, and exit the Registry.
If the above method does not work for you, try the following methods to solve the problem.
1. Open Program Files >> Yahoo Messenger and find the file UNWISE.exe file. Double click this to run it. This will un install yahoo messenger.

If you dont have any yahoo messenger installed on the pc it would be impossible for you to use the application.

 

First thing that you need to do is to download the program. You may use the link below to download the installer.

 

http://ph.messenger.yahoo.com/download/ 

 

After downloading YM run the file yahoomessenger.exe to start installation.

once done you may be able to use the program

it wasnt work yahoo messenger with my deaf friend ,the off add request pendng

I'm having the same problem, not quite sure whether it is happending due to upgrade to IE 8 or Windows Installer 4.5 installation. Cleanup and re-install of Yahoo Messenger 10 won't help. The YahooMessenger.exe fails to initialize right during the installation process.

yea uninstall all yahoo related stuff and reinstall should get rid of error

just uninstall messenger and restart the system and download it again . This will clear the damaged files and solve the problem

install new version yahoo messenger from filehippo.com
it will solve ur problem

first remove the program from control panel/add remove programs. then download and install this free utility >> http://www.ccleaner.com/ run cleaner and registry. after you're done, reinstall Yahoo Messenger. hope this helps.