Removing add-ons from Internet Explorer 7

Start Internet Explorer.
On the Tools menu, click Manage Add-ons.
Click the name of the add-on.
Use one of the following methods:
Click Update ActiveX to replace the add-on with the current version. This option is not available for all add-ons.
To enable an add-on, click Enable, and then click OK.
To disable an add-on, click Disable, and then click OK.
You may have to restart Internet Explorer

If that doesn't work, then try this;
Go to Start > Run, type iexplore –extoff and press Enter.
then internet explorer should load and you can remove the add-ons from the tools menu