Windows Live Messeger Is No Where to be seen

Hello,
Windows Live Messenger 9.0 is in my computer but i don't know where it is.
I have Checked control panel Add/Remove and it is not there i have even tried in computer; Vista(C:); Program Files and it is still not there.
I have tried to install windows live messenger 8.5 but it is just saying that i have the newer version of windows messenger in my computer.
I have tried to reinstall windows live messenger 9.0 it is saying i have already got it in my computer.
So What Will I Do?:(

Will You Help Me Please :D

Thank You For Your Time