Hi,
I think my 11yo daugther's problem is slightly worse than the above. She tried installing Messenger onto her new laptop, but, was getting the following message "80040154". She couldn't find Messenger in Control Panel Uninstall to uninstall it, so she went looking and found the directory in which it lives and deleted that. This is where I come in...

I can't re-install it because Windows Installer thinks it's already installed. Does anyone know what registry keys need to be deleted so that I can re-install it ???

Cheers,
David