ITunes will not open, get error message 7(windows error 126) this application has failed to start because d3d9.dll was not found. re-installing the application may fix this problem. well i did and did not fix anything.

this application has failed to start because d3d8thk.dll could not be found. I looked that file up and it seems its part of directx. i installed directx again but that still did not help.

d3d8thk.dll
That one is a DirectX 8 module and might not be included in the most recent DirectX 9 redistributable available from Microsoft. If it's been installed as part of a partial DirectX 8 install (as part of a game for example), that can cause the issue. Can you track down a full DirectX 8 redistributable? If so, if you install that, does that clear up the iTunes error?

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Error Message reads: this application has failed to start because MSVCR80.dll was not found. Re-installing the application may fix this problem. I have re-installed, SO many times and I still cant open iTunes.

Hi Support,
I am becoming anxious because no matter what I try it doesnt seem to allow me to open itunes.
Error Message reads: this application has failed to start because MSVCR80.dll was not found. Re-installing the application may fix this problem.
I have re-installed, SO many times and I still cant open iTunes.
Please help!!

Click here and follow the instructions.
(98888)

Everytime I turn on my computer running on Windows XP, a message appears from AppleSynchNotifier.exe-Unable to locate component - "this application has failed to start because CoreFoundation .dll was not found," Reinstalling did not fix problem.

Everytime I turn on my computer running on Windows XP, a message appears from AppleSynchNotifier.exe - Unable to Locate Component -
"This application has failed to start because CoreFoundation.dll was not found. Re-installing the application may fix this problem.
I uninstalled and re-installed itunes and the message still appears.
How do I fix this??
Thank you

With that one, first try uninstalling and reinstalling your MobileMe Control Panel for Windows, robin. Does that make the error go away?

I was updating Firefox from version 6 to version 7, after updating I tried to open Firefox and the message I got is this: This application has failed to start because xul.dll was not found. How can I fix this?

I was updating Firefox to the newest version 7.0.1 from version 6.0.2 I think it was, I clicked the restart Firefox button that always comes up after updating. It started updating and then Firefox never restarted like it was supposed to after it was done updating. I then tried to open Firefox and it told me "This application has failed to start because xul.dll was not found." I did have Firefox crash on maybe about 30 minutes or so earlier which bothered me because I have been using Firefox for years and never had it crash on me before but I didn't think much of it at the time it happened because I was able to go back onto Firefox and finish what I had been working on. A while later I checked for updates and updated. The first time I tried to update it didn't work though so I had to shutdown Firefox and reopen Firefox and start the update a second time. It was after the second time that when I tried to open Firefox I got that message about failing to start because xul.dll can't be found. I filed a crash report when my Firefox crashed. This would have been around 1am-2am in the morning that Firefox first crashed and then wouldn't allow me to open it after updating. I have a DELL laptop running the Windows XP operating system but the laptop is probably at least 6 or 7 years old. The laptop will no longer charge so I always have to have it plugged into an outlet. Both my laptop hard drive and my external hard drive give me messages that I am running out of disk space on my hard drive. I bought this laptop 6 or 7 years ago second hand so it could be even older. In short it's a piece of crap and it gives me all kinds of issues but I currently can't afford a new one, but I have never had any problems with Firefox and I use Firefox more than any other aspect of my laptop so it's really really bothering me. May you please help me fix it?

Unfortunately I tried that and it didn't work. Thanks for the help though. I tried to uninstall and it said I couldn't because the file is corrupt or something, but I think I finally got it uninstalled and/or deleted or whatever, but now I try to reinstall/download it again from the beginning and I can't. No matter what I do I can not get Firefox working again. No matter how many times I try to redownload it. Any other suggestions?

HT1926 My itunes won't open because it says "This application has failed to start because MSVCR80.dll was not found. Re-installing the application may fix this problem" Can someone help? I don't want to delete it altogether due to needing the phone backup

I was given notification to upload the latest version of itunes recently, so I clicked installed. However it has since corrupted my itunes and I get the error message:
"This application has failed to start because MSVCR80.dll was not found. Re-installing the application may fix this problem".
In poor timing, I have also accidently damaged my phone and have a new one to restore it to an old back up.
It is because of this I am reluctant to completely delete itunes off my computer and start again for fear of losing my back ups.
Is there another way to fix iTunes so I can open it again?
Thanks

Hey I finally got an older vesion of itunes to work!!! 10.7 x64 for windows 7
After uninstalling all apple products even quicktime
I had to delete everything from (program files, and program files x64, program data,)
And all downloads from apple, and I went in to search deleted other stuff from apple, and itunes
But definently not my itunes library and Playlist
Down loaded 10.7 x64 for windows 7, but checked (do not start when done)
Then I emptied my recycling bin and restarted my PC
I ran geek tech tool box same as reg cure pro, also PC Tools registry cleaner, and CC Cleaner
Then I emptied my recycling bin and restarted my PC
And wallah... It finally works, and I Love the older version anyways.
Easier to download and transfer music!!!!!

HT6001 I have tried numerous time to update iTunes to Version 11.1.4. Each time it has failed. I get the message of "This application has failed to start because MSVCR80.dll was not found". Also I get a message of "Error 7". Advise please.

I have tried numerous time to update iTunes to version 11.1.4. It has failed every time. Now I can't even get into iTunes on my PC. The message I get is "This application has failed to start because MSVCR60.dll was not found. Re-installing the application may fix the problem." Okay. Which application? What steps are needed for this process?
Also, I get this message "iTunes was not installed correctly. Please reinstall iTunes. Error 7 (Windows error 126)" Could someone please assist me in the steps necessary to remedy this issue. Thanks.

For many users at this point in time (iTunes 11.1.4.62) uninstalling iTunes alone is not enough and they may need to undertake further steps...
Go to Control Panel > Add or Remove Programs (Win XP) or Programs and Features (later)
Remove all of these items in the following order:
iTunes
Apple Software Update
Apple Mobile Device Support (if this won't uninstall move on to the next item)
Bonjour
Apple Application Support
Reboot, download iTunes, then reinstall, either using an account with administrative rights, or right-clicking the downloaded installer and selecting Run as Administrator.
The uninstall and reinstall process will preserve your iTunes library and settings, but ideally you would back up the library and your other important personal documents and data on a regular basis. See this user tip for a suggested technique.
Please note:
Some users may need to follow all the steps in whichever of the following support documents applies to their system. These include some additional manual file and folder deletions not mentioned above.
HT1925: Removing and Reinstalling iTunes for Windows XP
HT1923: Removing and reinstalling iTunes for Windows Vista, Windows 7, or Windows 8
tt2

After installing the latest version of ITunes I get an error message that says this application has failed to start because MSVCR80.dll was not found. how do I get Itunes to start working again?

After installing the latest version of ITunes I get an error message that says this application has failed to start because MSVCR80.dll was not found. how do I get Itunes to start working again?

See... Unable to install or open > http://support.apple.com/kb/TS5376
Also See this User Tip by turingtest2
https://discussions.apple.com/docs/DOC-6562

TS1717 recent update of software crashed. Now when opening i tunes I get message "this application has failed to start because MSVCR80.dll was not founds. Re-installing the application may fix this problem. Re-install has no effect!

recent update of software crashed. Now hwen i try to open i tunes, i get message "This application has failed to start because MSVCR80.dll was not found. Re-installing the application may fix this problem" - It has not!

Click here and follow the instructions. You may need to completely remove and reinstall iTunes and all related components, or run the process multiple times; this won't normally affect its library, but that should be backed up anyway.
(99750)

Updating iTunes with error message "this application has failed to start because MSVCR80.dll was not found"?

After updating iTunes, has anyone got the message "this application has failed to start because MSVCR80.dll was not found. Re-installing the application may fix this problem." message and "iTunes was not installed correctly. Please re-install iTunes. Error 7 (Windows error 126)"? I've tried everything from un-installing and re-installing iTunes to deleting the SC Info. Any help would be greatly appreciated

Click here and follow the instructions. You may need to completely remove and reinstall iTunes and all related components, or run the process multiple times; this won't normally affect its library, but that should be backed up anyway.
(99840)

HT1926 I try to download Itunes and when i am done it i tried to open it and it said "This application has failed to start because MSVCR80.dll was not found. re-installing the application may fix this problem"

i tried to open itunes and it said "This application has failed to start because MSVCR80.dll was not found. re-installing the application may fix this problem" and "itunes was not installed correctly. please reinstall itunes. Error 7 (windows error 126)" what does this mean and how do I fix it? I reinstalled itunes and this just popped up again :C

See Troubleshooting issues with iTunes for Windows updates.
tt2

Itunes update would not install due to an error, now itunes won't run and I get this message when I try to launch itunes: "This application has failed to start because MSVCR80.dll was not found. Re-installing the application may fix this problem"

itunes update would not install due to an error, now itunes won't run and I get this error message when I try to launch itunes: iTunes.exe - Unable to Locate Component "This application has failed to start because MSVCR80.dll was not found. Re-installing the application may fix this problem."
I'm on a Dell PC running Vista Home Premium.
HELP!!!!!!!!!!!!!!!!!!!

try removing all itunes and all other apple program
follow this link for more info. http://support.apple.com/kb/HT1923
reboot ur window after uninstalling
after that download the latest itunes setup and install.

TS1717 Can't open iTunes, keeps getting this error "iTunes.exe - Unable to locate component. This application has failed to start because MSVCR80,dll was not found"

Can't open iTunes, keeps getting this error "iTunes.exe - Unable to locate component. This application has failed to start because MSVCR80,dll was not found"

Solving MSVCR80 issue and Windows iTunes install issues.

HT201210 I just updated my iTunes and now I get a message that the application has failed to start because MSVCR80.dll was not found. What happened and how do I fix this? I can't access any of my music now.

I just updated my iTunes and now I get a message that the application has failed to start because MSVCR80.dll was not found. What happened and how do I fix this? I can't access any of my music now.

Click here and follow the instructions. You may need to completely remove and reinstall iTunes and all related components, or run the process multiple times; this won't normally affect its library, but that should be backed up anyway.
(99460)

HT1926 I tried to download the latest version of iTunes but now seem to have lost everything and can not access my library at all. Instead i keep on receiving the message 'Application has failed to start because MSVCR80.dll was not found. I cannot access

I tried to download the latest version of iTunes but failed half way through. It suggested that i reinstall we I tried. However, i now get this message which states "Application has failed to start because MSVCR80.dll was not found. Reinstalling the application may fix the problem"
I have tried this but with no success. I have therefore found that I cannot access my iTunes library at all now.
What should I do.

Click here and follow the instructions. You may need to completely remove and reinstall iTunes and all related components, or run the process multiple times; this won't normally affect its library, but that should be backed up anyway.
(99792)

TS3212 I cannot get the new iTunes to start in Windows Vista. I get an error that states "This application has failed to start because MSVCR80.dll was not found". Reinstalling does not help.

I get an error that states "This application has failed to start because MSVCR80.dll was not found". Reinstalling does not help.I have tried removing iTunes and reinstalling, I have tried "repairing" option at reinstall, nothing seems to work.

Read this:
iTunes 11.1.4 for Windows - Unable to install or open - MSVCR80 issue

ITunes will not open, get error message 7(windows error 126) this application has failed to start because d3d9.dll was not found. re-installing the application may fix this problem. well i did and did not fix anything.

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