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User profile for user: TidusWulf
TidusWulf Author
User level: Level 1
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ituens doesn't open. qtcf.dll error. tried everything

I updated my itunes and now I'm getting that all too popular wtcf.dll error.

first I tried to repair quicktime. nothing worked
I tried to reinstall itunes.
I uninstalled ituens and instaled it again
I uninstalled quicktime and installed that again
I downloaded a qtcf.dll file from thei nternet and put on my desktop, in the Windows foldar, and also in the system32 folder.
nothing has worked so far. I also get a startup error too related to ituneshelper.exe

built it myself 6 months ago, Windows 7, 64 bit

Posted on Feb 7, 2010 8:44 PM

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User profile for user: b noir
b noir
User level: Level 9
72,330 points

Feb 7, 2010 9:04 PM in response to TidusWulf

I downloaded a qtcf.dll file from thei nternet and put on my desktop, in the Windows foldar, and also in the system32 folder.


Let's first remove those three files, tidus. Having a QTCF.dll lurking about in unorthodox places on the PC can actually cause errors.

I also get a startup error too related to ituneshelper.exe


That suggests you're getting a rare version of the QTCF.dll error caused by a damaged Apple Application Support. (If AAS is broken, sometimes iTuneshelper isn't able to launch either.)

Let's try the procedure I suggest to fizzylove in the following thread:

http://discussions.apple.com/message.jspa?messageID=10918603#10918603

Does that help with the QTCF.dll?
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User profile for user: TidusWulf
TidusWulf Author
User level: Level 1
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Feb 9, 2010 6:37 AM in response to b noir

the file was not there. I should also note, if it's important, that if I try to open itunes, it gives me the error nonstop until I open the task manager and end the itunes.exe process.

also, whenever my computer starts up, I get the same popup pointing at ituneshelper.exe however I only have to click the OK button twice for it to go away.
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User profile for user: b noir
b noir
User level: Level 9
72,330 points

Feb 11, 2010 12:42 PM in response to TidusWulf

Interesting. Maybe two different problems happening at once? It sounds like the AAS reinstall may have fixed the iTunesHelper issue.

Try doing an all files and folders search of the PC for QTCF.dll, looking throughout all internal and external drives, searching in system, hidden files and non-indexed files. (Sorry, I don't have a Windows 7 box here to refer to, so I can't give you precise instructions on how to do that ... but I can tell you that the search is going to take a long time.)

How many copies of QTCF.dll do you find, and what are the file locations for each one?
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User profile for user: Sumskee22
Sumskee22
User level: Level 1
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Feb 24, 2010 2:45 PM in response to TidusWulf

I am also getting the error message: "The procedure entry point QTCF_CFUniCharGetUnicodePropertyDataForPlane could not be located in the dynamic link library QTCF.dll."

I found two copies of the QTCF.dll files as follows:
QTSystem (C:\Program Files\QuickTime)
System32 (C:\Windows)

What should I do from here?
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User profile for user: FSUJavi16
FSUJavi16
User level: Level 1
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Mar 7, 2010 8:28 PM in response to TidusWulf

I am also getting the same error with Windows 7:

iTunes.exe
This Application has failed to start because QTCF.dll was not found. Re-installing the application may fix this problem.

I tried searching/locating to transfer to desktop and delete like you advised others, but the file itself does not exist.

What can I do from here?
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User profile for user: b noir
b noir
User level: Level 9
72,330 points

Mar 9, 2010 10:42 AM in response to FSUJavi16

This Application has failed to start because QTCF.dll was not found. Re-installing the application may fix this problem.


That ones a bit different, javi.

Have you ever had a copy of QuickTime Alternative installed on that PC? It can spray QTCF.dll in odd places on the PC, and also uses the same Registry entries as QuickTime. So it's plausible that the Registry is currently looking in the wrong place for the file, because it's confused by leftover QT Alternative registry entries.
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ituens doesn't open. qtcf.dll error. tried everything

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