Web browser opens PDF files with Acrobat 6.0 instead of Reader 9.0

We have a Windows XP workstation that has Adobe Reader 9 and Adobe Acrobat 6 installed.  Reader 9 is set to open PDF files from the local machine ie when the user double clicks on a PDF file on his desktop, the file opens using Reader 9.

However, when he tries to view a PDF file on IE, it tries to open the PDF file using Acrobat 6.  I am not sure how to configure the browser to open the PDF file using Reader and not Acrobat.

Any ideas would be greatly appriciated.  BTW, we can't uninstall Acrobat 6 to upgrade, funding is not available right at the moment.
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deisrobinsonConnect With a Mentor Commented:
59calConnect With a Mentor Commented:

I might be wrong but, I think the problem is that Acrobat 6 was installed first. Try uninstall and then re-install Acrobat. Then see if it does the same thing. I know it seems an extreme measure, but if you have two exe's with the same name in different locations, if you type the exe name in a run box it will open the first one installed. Worth a go...
From adobe:


1. Quit Internet Explorer
2. Start Adobe Reader 9
3. Choose Edit > Preferences.
4. Select Internet in the list on the left.
5. Deselect Display PDF in Browser, and click OK.
6. Restart Internet Explorer or AOL.
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59Cal, that's what I just said.
deisrobinson, you posted yours while I was writing mine up, so didn't see you response

adallen is right but, you have to make sure you do the same in acrobat 6 and untick the Internet option...

Uninstall should not be necessary.

epsilon3Author Commented:
If you untick the internet option in both Reader and Acrobat then a PDF will not displaly at all.  Am I missing something here?
Sorry I misread adallen's post as I guess he mistyped it.

You have to select it in A9 and deselect it in A6.
epsilon3Author Commented:
OK, I'll give that a shot.
It has bee my experience that the dll in question is the AcroIEhelper.dll that is found at:

c:\program files\common files\Adobe\Acrobat\Activex\

Here is how I would approach fixing this issue.

Uninstall Adobe Reader 9.   Do not reboot just yet.
Open up a command window and CD to c:\program files\common files\Adobe\Acrobat\Activex\
run this command:  taskkill /f /im explore*
That should kill all explorer.exe windows.  Your desktop and task bar will disappear but the command window should still be open.

Then delete the acroiehelper.dll file (del acroie*.dll)
Then you can run explorer.exe again just type in:  explorer /separate
Then reboot.
After the reboot, reinstall Adobe Reader 9.
That should replace the AcroIEHelper.dll from Acrobat 6 to Reader 9
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