"The feature you are trying to use is on a network resource that is unavailable"
That's usually caused by a damaged QuickTime.msi
Download and install the Windows Installer CleanUp utility from Microsoft:
http://support.microsoft.com/kb/290301
Now run the utility ("Start > All programs > Windows Install CleanUp"). In the list of programs that appear in CleanUp, select any
QuickTime entries, and click "Remove". Quit out of CleanUp.
Next we'll clear away the leftover program files and folders. Their locations vary depending on whether you've got a 32-bit or 64-bit version of Vista.
*32-bit Vista*
Restart the PC.
Open Local Disk C: or whichever drive your program files are installed on.
Open the "Program Files" folder.
Right-click the "QuickTime" folder (if it still exists) and select Delete.
Go back into Local Disk C: or whichever drive your Operating System files are installed on.
Open the "Windows" folder.
Open the "system32" folder.
Right-click on the QuickTime file (if it still exists) and select "Delete".
Right-click on the QuickTimeVR file (if it still exists) and select "Delete".
*64-bit Vista*
Restart the PC.
Open Local Disk C: or whichever drive your program files are installed on.
Open the "Program Files (x86)" folder.
Right-click the "QuickTime" folder (if it still exists) and select Delete.
Go back into Local Disk C: or whichever drive your Operating System files are installed on.
Open the "Windows" folder.
Open the "sysWOW64" folder.
Right-click on the QuickTime file (if it still exists) and select "Delete".
Right-click on the QuickTimeVR file (if it still exists) and select "Delete".
You should now be QuickTime-free.
