Access calendar

Hi,

I'm developing an access-application that contains a calendar (mscal.ocx)
What I want to know is it possible to change the color (front or background) of a specific date.

What I want to achieve is the following:
The access is used to register the hours for all our employees.
We'd like them to fill in all the things they've done duaring a day.
I'd like to have an opportunity for them to see directly on which dates they still have to fill in some data.

I don't know if this is possible at all, but I supose by subclassing the thing it can be solved.

Any help is very much appriciated.

Kind regards,
MvRp350