See
BUG: License Error with ActiveX Control Added at Run-Time mskb #
Q192693>
>I have emailing using Outlook Express working on my computer but the same won't work on the clients computer raising the error.
>
>Error no.: 1426
>Message: OLE error code 0x80040112 class is not license for use.
>
>We both have OE 6 (there is a minor version diff. I have 2800.xxx and he has 2900.xxx if it matters) and both OE are made to be the default email client. I have W2K Prof and he has Win XP.
>
>Please advise what could the problem be.
>
>Thanks.
--sb--