said by TK Junk Mail :

Maybe give Revo uninstaller a shot? 64 Bit not supported.

said by Tursiops_G :

Sometimes, if an Application's Uninstall info becomes corrupted in the Windows Registry, RE-Installing the original application again (directly "over top" of it's existing installation), may correct the issue, then allowing you to properly UN-install it (via Add/Remove Programs)...

-Tursiops_G.

said by TK Junk Mail :

Maybe give Revo uninstaller a shot? 64 Bit not supported.

said by posthaste :

Error Opening Key

TypeLib cannot be opened.
An error is preventing this key from being opened.
Details: Access is denied.

said by auggy :

Consider restoring security settings to default.

The command to do that in Windows Vista is in the following MS KB article along with other information:

»support.microsoft.com/kb/313222

said by auggy :

The Windows Installer may not run in Safe Mode.

said by auggy :

The Windows Installer may not run in Safe Mode.

However I was under the impression that you could not modify the permissions on the following registry key using regedit:

HKEY_LOCAL_MACHINE\Software\Class\Interface\(46B89F5A-769D-4792-AD9A-E3755915CB3}\TypeLib

Do you get an "access denied" error trying to modify the permissions at that key?

If so, does the same error occur in Safe Mode?

said by TK Junk Mail :

Try this tool from MS:
»support.microsoft.com/default.as···s;290301

Info on use here:
»en.kioskea.net/faq/sujet-168-imp···t-reader

If that fails I would manually remove: Delete all Program Files folders refrencing Acrobat Reader (you will have a \Common Files\Adobe folder as well), and do a search in the registry for the same and delete all keys for Acrobat Reader.

said by bangaroo :

This is for older versions, and not vista.
But solution number 2 might help.

»kb2.adobe.com/cps/329/329137.html

Also, there were 2 fixes posted in this old thread.
»www.theeldergeek.com/forum/index···ic=11482

Also, try System Restore.
Also, try booting to Safe Mode and uninstall.

said by bangaroo :

You might try RegSeeker.

RegSeeker has a registry editor "Find in Registry" that allows you to delete keys. Maybe RegSeeker can bypass the premissions problem.

»www.softpedia.com/progDownload/R···229.html

Assuming I could delete that particular key, would that solve the problem of installing/uninstalling? I'm leary that getting rid of the key would leave me with a worse mess, with perhaps Adobe Reader 9.0 not working at all.

Also, I tried running RegEdit as Administrator and could still not open the key ... same error.

said by bangaroo :

What I am guessing is that the uninstaller is hanging on this registry key, and there are probably more invalid keys after this one. After you delete this key, the next invalid key will stop the uninstaller. You will have to keep deleting each invalid key until they are all deleted. Then the uninstaller will be able to finish the uninstall.

To be safe, first export the registry key HKEY_LOCAL_MACHINE\Software\Class\Interface\(46B89F5A-769D-4792-AD9A-E3755915CB3}\TypeLib, or create a system restore point.
If something goes terribly wrong, then reinstall the exported registry key, or revert back to the previous restore point.

Sorry it took so long, but an error prevented me from even deleting the TypeLib key... "Error while deleting key"

At this point, I may wait for Windows 7 and perform a clean install.

said by bangaroo :

Was this a Window's error message, or a RegSeeker error?
Give RegSeeker a try, if you havn't already.