Unable to run iTunes on Windows 7

Question

I am running Windows 7 on a ThinkPad x200. I have a iPhone 3Gs. I have tried to install the latest iTunes from the Apple site, both the 32 and 64 bit versions. Both fail to start with an error of "The ITunes application could not be opened. An unknown error occurred (-50)." Any insights would be appreciated.

Answer 1

I have a similar problem. Since I could not get iTunes to run anymore, I checked if QuickTime wuold run...since iTunes relies on it. QuickTime will not start. I am using Windows 7 Ultimate 64.
If I start QuickTime, it terminates without any message or any window opening on the screen.
When I check the systems' application error log I see this error...until it is fixed, QuickTime, iTunes, Paint Shop, and of course my iPhone all are plagued with issues!
I tried the complete deinstall, delete files, etc., reinstall resolution. I tried a different account, also errored. I tried selective startup to only start the apple applications, also errored.
Log Name: Application
Source: Application Error
Date: 11/27/2009 10:31:25 PM
Event ID: 1000
Task Category: (100)
Level: Error
Keywords: Classic
User: N/A
Computer: Larry-xps
Description:
Faulting application name: QuickTimePlayer.exe, version: 7.65.17.80, time stamp: 0x4afa5828
Faulting module name: QuickTimePlayer.dll, version: 7.65.17.80, time stamp: 0x4afa5820
Exception code: 0xc0000409
Fault offset: 0x0000130d
Faulting process id: 0xff0
Faulting application start time: 0x01ca6fe3a08d5665
Faulting application path: C:\Program Files (x86)\QuickTime\QuickTimePlayer.exe
Faulting module path: C:\Program Files (x86)\QuickTime\QuickTimePlayer.dll
Report Id: e2e7fa28-dbd6-11de-8d9c-00225fb5e216
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
<System>
<Provider Name="Application Error" />
<EventID Qualifiers="0">1000</EventID>
<Level>2</Level>
<Task>100</Task>
<Keywords>0x80000000000000</Keywords>
<TimeCreated SystemTime="2009-11-28T04:31:25.000000000Z" />
<EventRecordID>4938</EventRecordID>
<Channel>Application</Channel>
<Computer>Larry-xps</Computer>
<Security />
</System>
<EventData>
<Data>QuickTimePlayer.exe</Data>
<Data>7.65.17.80</Data>
<Data>4afa5828</Data>
<Data>QuickTimePlayer.dll</Data>
<Data>7.65.17.80</Data>
<Data>4afa5820</Data>
<Data>c0000409</Data>
<Data>0000130d</Data>
<Data>ff0</Data>
<Data>01ca6fe3a08d5665</Data>
<Data>C:\Program Files (x86)\QuickTime\QuickTimePlayer.exe</Data>
<Data>C:\Program Files (x86)\QuickTime\QuickTimePlayer.dll</Data>
<Data>e2e7fa28-dbd6-11de-8d9c-00225fb5e216</Data>
</EventData>
</Event>