Multi-user system, non-admin-users get "error 46" when downloading quicktime files

  • Thread starter Thread starter lllcubed
  • Start date Start date
L

lllcubed

Thanks in advance if you have some idea about where the root cause is.
This smells like a permission issue, but have not found one as yet.

Error message:
"Error 46: Could not load or find the QuickTime ActiveX control."

Context:
WinXP SP2 fully patched (as of 06/20/2006)
Multiple users: 1-Admin, all others a member of the Users group
Simple File Sharing is enabled (this problem does not change when this
option is disabled)
iTunes 4.9.x and QuickTime 7.1 installed
Programs have been uninstalled and reinstalled several times
QuickTime related .ocx files have the proper permissions in the
registry

Symptoms:
-All system users can view quicktime movies when they are embedded in
web pages.
-Administrator can launch quicktime and view *.mov files, all others
get Error 46 (see above) when attempting to launch quicktime or
double-clicking on .mov files
-File association properties (under Contorl Panel | Folder Options |
File Types) shows .mov opens with QuickTime Player (deselecting this
displays WMP as the application)
-Users Browsing to a directory where .mov files are located, displays
the WMP icon instead of quicktime (as under folder options)

This all used to work. It appears that this became broken in the last
month or two, after either patching, or installing quicktime 7.1 to
gain H.264 codec compatablity.


Is there a guaranteed way to force system wide file assoc that is
reliable?
Is there a tool that parses the registry and displays what activeX
controls are in use for a particular system operation?

Thanks! lllcubed -&- (g) male dot c0m
 
Thanks in advance if you have some idea about where the root cause is.
This smells like a permission issue, but have not found one as yet.

Error message:
"Error 46: Could not load or find the QuickTime ActiveX control."

Context:
WinXP SP2 fully patched (as of 06/20/2006)
Multiple users: 1-Admin, all others a member of the Users group
Simple File Sharing is enabled (this problem does not change when this
option is disabled)
iTunes 4.9.x and QuickTime 7.1 installed
snip, snip

Symptoms:
-All system users can view quicktime movies when they are embedded in
web pages.
-Administrator can launch quicktime and view *.mov files, all others
get Error 46 (see above) when attempting to launch quicktime or
double-clicking on .mov files
-File association properties (under Contorl Panel | Folder Options |
File Types) shows .mov opens with QuickTime Player (deselecting this
displays WMP as the application)
-Users Browsing to a directory where .mov files are located, displays
the WMP icon instead of quicktime (as under folder options)
Click to expand...

I would have never imagined that an activeX control was responsible for
explorer recongizing the proper application to use, even for displaying
the proper icon...
snip, snip
Click to expand...

Fixed this using http://www.sysinternals.com/Utilities/Regmon.html and
regedit.exe.
On my system, all non-admin users were being denied access to these
registry keys:

HKEY_CLASSES_ROOT\QTOControl.QTControl
HKEY_CLASSES_ROOT\QTOControl.QTControl.1
both keys fixed by adding group: users, permissions: read

This worked because all the non-admin users belong to a Group on the
machine, call users. You may need to adjust the names to match what is
configured on your system.

Regedit can modify these permissions (but don't do it unless you are
confident you can recover if you cause a problem). An easy fix, once
the problem is identified.

Use regmon for a while and get familiar with how it works. Learn to
use the filters, you'll need these to focus in on the problem.

Modifying your registry at your own risk. You shouldn't do this unless
you are comfortable restoring a backup copy after you have botched the
edit... Remember to use a registry backup utility! I used
http://www.fixregistry.com/download.htm Registry Healer

All non-admin users are operational at this time. I did not have to
update iTunes and H.264 content works!

So it looks like this is a bug in the QuickTime 7.1 installer? Anyone
have any insight about why this is happening with some regularity (at
least according to the message board posts I'm seeing this month...)

Maybe this info is some help,

gwG
 
Back
Top