"Quicktime failed to initialize. Error # -2093" and Error Code -3

"Please make sure Quicktime is properly installed on this computer."

Can someone please help me? My itunes and quicktime player wont work and i keep getting this message. When I try to open itunes it tells me to please reinstall itunes.

I tried doing a system restore to a previous date but that didnt work. I tried to uninstall quicktime from the add/remove menu but it wouldnt uninstall. I tried using the itune setup to 'repair' itunes and quicktime but that didnt work because when it got to the end of installing quicktime, i got 'Error Code -3'.

I tried downloading quicktime off of apples website but that didnt work. I tried updating quicktime but that didnt work.

I cant uninstall quicktime to reinstall everything. I cant get quicktime or my itunes to work.

Can someone please help me out? Im desperate! Thanks.