Add/Remove Programs Stopped Working

[Guest]

[comcity]

About a week ago, I started up Add/Remove Programs and Comodo AntiVirus came up with something like:

Unauthorized program attempting to access the registry.

I'm 95% sure I clicked on Allow but I suppose I could have made a mistake.

Anyway, now Add/Remove programs no longer works.  It just sits there forever with the screen that says:
Please wait while the list is being populated....

Now, this is also a reported Microsoft problem in a Q Article Q329891:

http://support.microsoft.com/default.aspx?scid=kb;en-us;329891&Product=win2000
http://www.jasonhartman.net/2005/08/addremove-programs-window-will-not.html

However, if I now attempt to  access to do what this Q article says:  I get the following error:
 

mshtml.dll was loaded, but the DllRegistryServer entry point was not found.
The file cannot be registered.


It seem  to me it can't get to the registry either.  Do I have to uninstall this virus program to fix this?

[EricJH]

Iirc the add/remove programs gets run by rundll32.exe. Look up the rule for rundll32.exe under Computer Security Policy (Defense +  --> Advanced) and select it --> Edit --> Access rights --> push the modify button behind "Run an executable"  --> now see if you accidentally blocked something.

[comcity]

I don't have a "modify" button...but I have "edit".  I click on Edit and then I have to click on "Access Rights"

Nothing is clicked on Block...everything is checked to ASK.

If I click on Protected Registry Keys, and then the Modify button there and then Blocked Registry Keys.  Nothing shows there as blocked.

If this is the right place.....

[Dch48]

Are you running Windows 2000? That Microsoft article only applies to that OS.

[comcity]

No this is XP.
But the problem still remains that Add/Remove Programs stopped working...and the antivirus program tried to grab it right away.  Every since...it won't come back up.  I'm sure its the antivirus program...  I was just looking for ways to fix it.

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