Try McAfee support. Rulaunch is their update checker.
...Alan

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Alan Edwards, MS MVP W95/98 Systems
http://dts-l.org/index.html
In microsoft.public.win98.performance, "L Hammond"
<amberaupairs2@yahoo.co.uk> wrote:
>There is an error box which says rulaunch (with the
>microsoft logo on the side) has performed an illegal
>operation. It didnt used to come on, and now it does -
>dont know whats changed if anything. Now every time I go
>on it comes up, usually just after I start internet.