Non-admins cannot view embedded QuickTime videos
I'm hoping that somebody may have run across this before and knows a way to fix this problem or at least can point me in the right direction. I've tried doing a search for this same problem, but so far found nothing that was helpful in fixing it.
I work in the Computer Services department of a company that uses Windows XP SP3 PCs to log on to our domain. There are three different models of computer being used, all of which are having this same problem. My department was recently made aware that embedded QuickTime videos would not work at http://iris.peabody.vanderbilt.edu (we have verified that other sites have the same problem). We were told that when the person tried to view a video a "Q" with a question mark over it appeared and nothing else. The web site is being accessed with Internet Explorer 7. We have since tested and verified that the same problem occurs in FireFox 3.5, Opera 10, and Google Chrome 3.0.
We found out that the described problem was occurring when non-administrative accounts logged on (which accounts for nearly all of our users), but when an administrator was logged on the site worked just fine.
Here is what I have tried so far:
The PCs were running QuickTime 7.6. I updated a computer to QuickTime to 7.6.5. The problem still existed after the update.
On another computer, I uninstalled QuickTime from the computer. I shut down the computer, turned it back on, and installed QuickTime 7.6.5. The problem still existed after doing this.
During the course of troubleshooting this issue using another computer, I found that non-administrator accounts can download the QuickTime installer and run it. The installer does install the latest version of QuickTime, even though the user is non an administrator. That user can then view the embedded videos with no problem. However, any other non-administrator account that logs in that computer still cannot view the embedded videos.
I set up a test PC, logged in to it with a non-administrator account (to make things simpler, I will refer to that account as "Account A" from now on), and installed the latest version of QuickTime. I verified that the embedded videos now worked for that account. Then, I logged on with another non-administrator account ("Account B") and verified that the embedded videos still do not work. I copied the NTUSER.DAT file from the profile folder of Account A ("C:Documents and Settings\Account A") into the profile folder for Account B ("C:Documents and Settings\Account B"). I then logged on using Account B. The embedded videos still did not work for Account B.
I copied everything from the profile folder for Account A into the profile folder for Account B. We then logged on as Account B. The embedded videos still did not work.
Since the NTUSER.DAT file made no difference it seems unlikely there there is an HKEY CURRENTUSER registry key that allows embedded QuickTime files to play. Since copying all the files/folders in Account A did not work, it seems unlikely that there was a file of some sort that was put in the Account A profile that allows embedded QuickTime videos to play.
I have tried checking for folders or files that were Account A has been granted security permissions that have not been given to "Users" or "Everyone". So far I have not been able to find such folders or files.
If anybody has any suggestions on other things to try to fix this problem it would be greatly appreciated.
I work in the Computer Services department of a company that uses Windows XP SP3 PCs to log on to our domain. There are three different models of computer being used, all of which are having this same problem. My department was recently made aware that embedded QuickTime videos would not work at http://iris.peabody.vanderbilt.edu (we have verified that other sites have the same problem). We were told that when the person tried to view a video a "Q" with a question mark over it appeared and nothing else. The web site is being accessed with Internet Explorer 7. We have since tested and verified that the same problem occurs in FireFox 3.5, Opera 10, and Google Chrome 3.0.
We found out that the described problem was occurring when non-administrative accounts logged on (which accounts for nearly all of our users), but when an administrator was logged on the site worked just fine.
Here is what I have tried so far:
The PCs were running QuickTime 7.6. I updated a computer to QuickTime to 7.6.5. The problem still existed after the update.
On another computer, I uninstalled QuickTime from the computer. I shut down the computer, turned it back on, and installed QuickTime 7.6.5. The problem still existed after doing this.
During the course of troubleshooting this issue using another computer, I found that non-administrator accounts can download the QuickTime installer and run it. The installer does install the latest version of QuickTime, even though the user is non an administrator. That user can then view the embedded videos with no problem. However, any other non-administrator account that logs in that computer still cannot view the embedded videos.
I set up a test PC, logged in to it with a non-administrator account (to make things simpler, I will refer to that account as "Account A" from now on), and installed the latest version of QuickTime. I verified that the embedded videos now worked for that account. Then, I logged on with another non-administrator account ("Account B") and verified that the embedded videos still do not work. I copied the NTUSER.DAT file from the profile folder of Account A ("C:Documents and Settings\Account A") into the profile folder for Account B ("C:Documents and Settings\Account B"). I then logged on using Account B. The embedded videos still did not work for Account B.
I copied everything from the profile folder for Account A into the profile folder for Account B. We then logged on as Account B. The embedded videos still did not work.
Since the NTUSER.DAT file made no difference it seems unlikely there there is an HKEY CURRENTUSER registry key that allows embedded QuickTime files to play. Since copying all the files/folders in Account A did not work, it seems unlikely that there was a file of some sort that was put in the Account A profile that allows embedded QuickTime videos to play.
I have tried checking for folders or files that were Account A has been granted security permissions that have not been given to "Users" or "Everyone". So far I have not been able to find such folders or files.
If anybody has any suggestions on other things to try to fix this problem it would be greatly appreciated.
Windows XP Pro
