Fix for Quicktime Error 46 in Windows Vista

[JMarimon]

Hey guys. I recently decided to ditch the Quicktime Alternative for the real thing. They apparently fixed Vista issues in version 7.2, and this is good because Quicktime Alt had issues of its own.

 

Anyhow, I installed the new Quicktime, and the Firefox issues were fixed. I could watch trailers, open MPG files, all was good. But then, I went to watch a MOV file with Quicktime, and I got the following error:

 

"Error 46: Could not find or load activex control."

 

I refuse to live with errors and such, so I spent a few hours searching Google and forums, and finally found something that works. People here on the NE tech Talk forums have helped me so many times, I just want to give back; hope this helps at least one person. Remember, this is a fix for Windows Vista.

 

Quicktime 7.x installed under Windows XP (admin account). It worked, installing updates, too. After upgrading the system (no clean install) to Windows Vista Business (same admin account/UAC off) Quicktime still worked. Hoped to fix some smaller issues with the newest Quicktime 7.1.5 Update.

 

BOOM!The Application didn't start any longer. Giving an error message saying "Error 46: Could not find or load activex control" (only the browser plugin worked fine). Uninstalling/Reinstalling didn't help. Apple's installation package installs Quicktime in such a way that it only functions at all under the actual account you were logged into when you installed it. The Upgrade from XP to Vista with the new User Account Control (even when turned off) messed up things here, the problem: you can't even correctly uninstall Quicktime in this state. A similar problem is described here. But the fixes didn't work for Vista. But based on Bazm's post there, I came up with the following solution for Vista to reset necessary registry key permissions:

 

The Solution: There is an old NT utility called SubInAcl.exe that can be used to reset permissions in Windows XP and also in Vista.

 

Step 1: Download subinacl.msi from the link

http://go.microsoft.com/fwlink/?LinkId=23418 and install it.

Step 2: Download my modified version of reset.cmd from here and save the file in 'C:\Program Files\Windows Resource Kits\Tools'.

Step 3: Open Command Prompt and type the following without quotes (hit Enter):

'cd c:\program files\windows resource kits\tools'

Step 4: Now type 'reset.cmd' and hit Enter (without quotes)

You will see the Command Line Tool running for some seconds. The issue should have been fixed and Quicktime should run again.

 

That is from here: http://research.gerger.com/?view=lab&aID=1006