Itunes won't launch. Need to delete/uninstall Itunes and re install it. Little help?!

Here's the deal. I accidentally deleted Quick Time, which is needed to run Itunes. When i tried using Itunes an error message indicated that i need to delete/reinstall itunes.
Will i loose all my music library, in the process?
Thanks for all help. Yaw'll can reply to hs525@msn.com . Thanks a bunch.

Uninstall itunes. There are

Uninstall itunes. There are a few myths with itunes...this is one of them. Uninstalling itunes never deletes your music library. Uninstall itunes, restart, download itunes and install it, if on vista, run as administrator to install and THEN plug in your ipod. You'll be just fine.