ActiveX module missing in Vista

[Janes]

Hi.

I recently upgraded from Xp to Vista.

There is a few websites that worked fine on Xp but When I try to go to the same site on VISTA (IE7) it gives a message that says ActiveX Securtiy Module Missing.

I tried changin my ActiveX security settings but it had no effect, the problem persisted.

I am stumped.

Please Help!

Regards
J