1. Open internet explorer, click Tools – Internet Options .
2. Click the Security tab – Custom Level button.
Under ActiveX ensure the following are set to enabled
Run ActiveX and plug-ins – Enabled
Download Signed ActiveX Control – Enabled
Script ActiveX controls marked as safe for scripting – Enabled
Set the following to “Prompt ”
Download unsigned ActiveX Control – Prompt
Initialize and script ActiveX controls not mark as safe – Prompt
3. Click OK and Apply and OK. Restart the browser.
url:http://answers.microsoft.com/en-us/ie/forum/ie8-windows_other/windows-has-blocked-this-software-because-it-cant/2e60d481-b8a3-4a1a-af73-afcb5a3f2e36