Internet Explorer is currently running with add-ons disabled?

Question

I downloaded today the Internet Explorer 7 Release Candidate 1
but the message before download it was:
"Get Internet Explorer 7 Release Candidate 1
Based on your computer settings, the below is the correct version of Internet Explorer 7 Release Candidate 1 for your system.
Internet Explorer 7 Release Candidate 1 for Windows XP Service Pack 2 (SP2) (most common)
For use with Windows XP Professional SP2 and Windows XP Home SP2 editions
(Internet Explorer 7 Release Candidate 1 build number 7.0.5700.6) "

So, now I have that error in my browser.

How can I fix that problem?

How can I enable the add-ons?

My system is Windows Xp:
5.1.2600 Service Pack 2 Build 2600
Version7.0.5700.6 (Explorer)

Also I got this problem:
mk:@MSITStore:C:\WINDOWS\Help\iexplore.chm::/ie_add-ons_disabled_qa.htm

Plus:

The Help window tell me to:
To re-enable a browser add-on
Open Internet Explorer.
Click the Tools button, click Manage Add-ons, and then click Enable or Disable Add-ons.
Click the add-on you want to enable, click Enable, and then click OK.
Related Topics

but I can NOT click on the "Manage Add-ons" because it's invisible-like in the "Tools" option

I click the yahoo mail add-on and I got this message:
"Internet Explorer 7 add-on update
We're sorry, Microsoft does not currently have a link to an add-on that is compatible with Internet Explorer 7 from this vendor. You might want to visit the vendor's website to check for an update."

Answer 1

Just uninstall it.. An RC version of a program is still in error testing... why put your computer at risk? Once you've uninstalled it run windows update to get IE back to current version.

Answer 2

In Beta3 there was a program in the Start > All programs folder then Internet Explorer call Internet Explorer - Addons or something like that.

I have RC1 aswell but I can't find it - I would suggest you have a look aswell though.