Itunes Has Stopped Working, Program closes

Question

I have recently just updated my Itunes and it has stopped working. This happened in a previous updated version, but after a reinstall i was able to get it to work. This time it did not work, and I can't seem to find a way to get the program to work now.
The error looks like this...
I open itunes from shortcut on desktop or exe file from program file
I see itunes is opened up, i can see my playlists/songs everything
Before i get a chance to do anything windows pops up with a window and says
"Itunes has stopped working...windows is checking for a solution to the problem...A problem caused the program to stop working correctly. windows will close the program and notify you if a solution is available.
I can only click on the "close program" button.
I have tried a reinstall twice now, and am lost for ideas on how to fix this. I'm not amazing at troubleshooting problems, so I've posted the error that shows up in my event log. Any help would be appreciated so i can continue to use the itunes store, and update my iphone.
Dell Vostro 1510
Windows Vista Home Basic 32-bit
Service Pack 2
Version=1
EventType=APPCRASH
EventTime=129022629143916684
ReportType=2
Consent=1
UploadTime=129022629169746684
Response.type=4
Sig[0].Name=Application Name
Sig[0].Value=iTunes.exe
Sig[1].Name=Application Version
Sig[1].Value=9.0.2.25
Sig[2].Name=Application Timestamp
Sig[2].Value=4ae90227
Sig[3].Name=Fault Module Name
Sig[3].Value=QuickTimeH264.qtx
Sig[4].Name=Fault Module Version
Sig[4].Value=7.64.17.73
Sig[5].Name=Fault Module Timestamp
Sig[5].Value=4aa21f41
Sig[6].Name=Exception Code
Sig[6].Value=c0000005
Sig[7].Name=Exception Offset
Sig[7].Value=000587a4
DynamicSig[1].Name=OS Version
DynamicSig[1].Value=6.0.6002.2.2.0.768.2
DynamicSig[2].Name=Locale ID
DynamicSig[2].Value=1033
DynamicSig[22].Name=Additional Information 1
DynamicSig[22].Value=fd00
DynamicSig[23].Name=Additional Information 2
DynamicSig[23].Value=ea6f5fe8924aaa756324d57f87834160
DynamicSig[24].Name=Additional Information 3
DynamicSig[24].Value=fd00
DynamicSig[25].Name=Additional Information 4
DynamicSig[25].Value=ea6f5fe8924aaa756324d57f87834160
UI[2]=C:\Program Files\iTunes\iTunes.exe
UI[3]=iTunes has stopped working
UI[4]=Windows can check online for a solution to the problem.
UI[5]=Check online for a solution and close the program
UI[6]=Check online for a solution later and close the program
UI[7]=Close the program
FriendlyEventName=Stopped working
ConsentKey=APPCRASH
AppName=iTunes
AppPath=C:\Program Files\iTunes\iTunes.exe

Answer 1

Good job posting the event log entry, Charlie.
Sig[3].Name=Fault Module Name
Sig[3].Value=QuickTimeH264.qtx
Okay, taken at face value this is suggesting there's a problem with your QuickTime (which makes sense in context, because iTunes requires a properly functioning QuickTime in order to run).
So, let's first try swapping out your existing QuickTime.
Head into your "Uninstall a program" control panel. Uninstall QuickTime.
Next, we'll clear away any leftover QuickTime program files or folders.
Restart your computer.
After the computer restarts, open Local Disk (C:) located in Computer or whichever hard disk your programs are installed on.
Open the Program Files folder.
Right-click the QuickTime folder (if it exists), choose Delete, and choose Yes when asked to confirm the deletion. Click Continue if Windows needs confirmation or permission to continue.
Open Local Disk (C:) located in Computer or whichever hard disk your operating system is installed on. Open the Windows folder. Open the System32 folder.
Right-click the QuickTime file (if it exists), choose Delete, and choose Yes when asked to confirm the deletion. Click Continue if Windows needs confirmation or permission to continue.
Right-click the QuickTimeVR file (if it exists), choose Delete, and choose Yes when asked to confirm the deletion. Click Continue if Windows needs confirmation or permission to continue.
Right-click the Recycle Bin and choose Empty Recycle Bin.
Restart the PC and download and save a copy of the QuickTime standalone installer to your hard drive (get the one that doesn't mention iTunes):
http://www.apple.com/quicktime/download/
Install QuickTime by doubleclicking the QuickTimeInstaller.exe file.
Restart again, and try launching iTunes again. Does it launch without the error this time?