Create Meeting Request In Outlook Using ASP.NET page

I'm just learning ASP.NET. I'm going to create an .aspx page with a form. The user will fill out the form with information about a job and then click the "Submit" button. The data will then be stored in the database (that's the easy part) and the user's calendar (Outlook, could be XP or 2003) will be updated with the info about the job (bid date, etc.). Also, a "meeting request" will be sent to three or four other users. The problem is: how do I do the last two actions(update the user's calendar and send the meeting request)?

I have been looking for information about this on the Internet and I haven't been able to find any code that will perform all this automatically so that the user doesn't have to do anything else after clicking the button.

I'm a newbie (I just started learning ASP.NET a week and a half ago and I haven't had much time to work with it), so please be very specific and if possible, provide complete code. If anyone can provide complete code that works the way I need, I will increase the points to 500.

Thanks,
Cindy