Itunes won't start on vista home premium

Question

I installed Vista Home Premium and did a fresh install of iTunes (7.1.1.5).
iTunes won't start and gives an error (iTunes won't start):
Eventname: APPCRASH
Name: iTunes.exe
Version: 7.1.1.5
Timestamp:45f8a616
Name of the errormodule: StackHash_03ef
I can't seem to find the solution in the Forums and internet.
I deinstalled and reinstalled iTunes several times but it still gives the same error.
Quicktime also won't start.
Any help is appreciated.

Answer 1

I deinstalled all codecs (including Nero), because windows vista solutions also pointed me in that direction, but no luck yet..
okay. we'd better try swapping out your QuickTime now that the codecs are out of the way.
sometimes with that sort of "error message free" launch failure with QuickTime, Add/Remove doesn't want to get rid of the QuickTime. so we'll try the following technique if that happens:
Download and install the Windows Installer CleanUp utility. then use it to clear any existing QuickTime installation configuration information from your PC:
Description of the Windows Installer CleanUp Utility
Next, we’ll manually remove leftover program files and folders.
1. On the Start menu, click My Computer (or double-click My Computer on the Desktop).
2. In My Computer, open Local Disk.
3. Open Program Files.
4. Right-click on the QuickTime folder and click Delete from the shortcut menu.
next, we'll try to get a fresh copy of QuickTime into your PC by doing a repair install of itunes.
switch off antivirus and antispyware applications prior to the repair install.
go into Add/Remove and select itunes. click "Change" and then click "Repair".
if the repair install goes through okay, restart the PC and try launching itunes again. does it launch properly now?