Quicktime activeX plugin won't run

try uninstalling and reinstalling quicktime does if not work  you follow these steps:

open notepade and paste this code:

<OBJECT CLASSID="clsid:02BF25D5-8C17-4B23-BC80-D3488ABDDC6B" WIDTH="160"
 HEIGHT="144" CODEBASE="http://www.apple.com/qtactivex/qtplugin.cab">
 <PARAM name="SRC" VALUE="sample.mov">
 <PARAM name="AUTOPLAY" VALUE="true">
 <PARAM name="CONTROLLER" VALUE="false">
 <EMBED SRC="sample.mov" WIDTH="160" HEIGHT="144" AUTOPLAY="true"
 CONTROLLER="false"
 PLUGINSPAGE="http://www.apple.com/quicktime/download/">
 </EMBED>
 </OBJECT>

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save the file in name.html
put in the same folder a .mov file if you have it.
open the html file that you have just create

if you have problem lear it:
http://developer.apple.com/quicktime/compatibility.html

if you have problem to create the html file i've attach it on this post html.html

Thanks for your response, but the error is not with the installation since it works just fine under the admin account. It's something to do with security preventing the user account from running it properly. I just don't know what that prevention is.

Any thoughts?