The easiest method I know:

1. Remember the name of the ocx control object in your form.
2. Delete the ocx object from your form.
3. Add the new ocx to your form using the same name as the old one.

But, first, be sure that the new ocx is correctly registered.

Vlad

>I have a class that use a OCX ( MMail.OCX ) and the provider just change the verison on me.
>
>I install the new verison and when I modify my class I now get the error OLE error code 08x80040154: Class not registed
>
>What can I do to fix this problem?