So, I can't open iTunes - get a WerFault.exe - Application Error

OK. Two days ago, iTunes worked just fine. No updates between then and now. Nothing new installed on my computer. I tried to open iTunes today to listen to my music, and get this:
It pops up at least 3 times, and one time somewhere areound 15 or 20 times, and iTunes doesn't open! I am a certified computer tech, so went through all the troubleshooting I know - even redownloaded iTunes, ran it, and choose to "Repair" iTunes. I even removed iTunes and completely re-installed it, and it STILL does it! What the **** is going on?

...the screenshot didn't stay there... the error window has the following:
WerFault.exe - Application Error
The instruction at 0x703120e0 referenced memory at 0x8ead6a78. The memory could not be written.
Click on OK to terminate the program.

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CAN'T OPEN iTunes, get message "can't open Error (-50)?

Can't open iTunes, get error message (-50)?

The 50 when launching iTunes can indicate a damaged Apple Application Support. So first I'd try a Repair install of your Apple Application Support.
Restart the PC. In your Add or Remove Programs control panel, select Apple Application Support, click "Change" and then click "Repair".
Does the repair install go through okay? If so, does itunes launch without the (-50)?

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I installed iTunes 6.0 on 3 Windows XP SP 2 computers today. All upgrading from iTunes 5.0
On 2 of the computers I got error messages pasted below during the QuickTime part of the installation. I dismissed the errors and the installation "completed successfully".
I've used iTunes 6.0 and opened Quicktime and everything seems fine so far. So I'm not asking for help with a problem, just noting this issue in case anyone else has observed it.
I am aware that IDriver.exe is part of the InstallShield routine. A quick check and I couldn't find anything about this error.
Madam
Event Type:     Information
Event Source:     Application Popup
Event Category:     None
Event ID:     26
Date:          13/10/2005
Time:          5:24:40 PM
User:          N/A
Computer:     COMPUTER
Description:
Application popup: IDriver.exe - Application Error : The instruction at "0x77511029" referenced memory at "0x0000005c". The memory could not be "read".
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Event Source:     Application Popup
Event Category:     None
Event ID:     26
Date:          13/10/2005
Time:          5:25:11 PM
User:          N/A
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hi Madam!
hmmm. i couldn't turn up anything specific at event ID:
http://www.eventid.net/display.asp?eventid=26&eventno=2271&source=Application%20 Popup&phase=1
(i'm not a subscriber, so i can't follow up their "M" links ... not that there was anything specific to the IDriver.exe anyway.)
hmmmm. if you
b do
start running into problems, and you've got the time, it may be worth getting an install log to the moderators:
Gayle B, "If you are experiencing installation issues...", 06:20pm Oct 12, 2005 CDT
still at the early stage of troubleshooting these, i'm afraid, so i can't give you much more feedback than this. maybe keep checking in every day or so to check on any developments?
love, b

Can not open iTunes, get error message 126

Unable to upgrade iTunes to lasted version. Got error message about a missing file. Tried to uninstall and reinstalled, after deleting Temp folder from C drive, but still get error message 126. Can anyone tell me what I need to do?

Hello mvguillet,
Thank you for the details of the issue you are experiencing with installing the latest iTunes update. I recommend following the steps below:
Resolution
Follow these steps to resolve the issue:
Check for .dll files
Go to C:\Program Files (x86)\iTunes and C:\Program Files\iTunes and look for .dll files.
If you find QTMovie.DLL, or any other .dll files, move them to the desktop.
Reboot your computer.
Note: Depending on your operating system, you may only have one of the listed paths.
Uninstall and reinstall iTunes
Uninstall iTunes and all of its related components.
Reboot your computer. If you can't uninstall a piece of Apple software, try using the Microsoft Program Install and Uninstall Utility.
Re-download and reinstall iTunes 11.1.4.
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You can find the full article here:
iTunes 11.1.4 for Windows: Unable to install or open
http://support.apple.com/kb/TS5376
Thank you for using Apple Support Communities.
Best,
Sheila M.

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Kept searching discussion board & found solution. McAfee for some reason changed firewall access to blocked. Changed to full access & iTunes now opens with no problem. Next issue is password problem. Still need to figure out what to do there.

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One of your Apple Application Support dlls has gotten damaged or gone walkabout, Martha. For some more information on the relationship between Apple Application Support and iTunes see the second part of this user tip:
[iTunes for Windows, QuickTime, and Apple Application Support|http://discussions.apple.com/thread.jspa?threadID=2355263]
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Do you have a 32 bit or 64-bit version of Vista?
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http://support.microsoft.com/kb/310747

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(99623)

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So, I can't open iTunes - get a WerFault.exe - Application Error

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