I need to place appointments in an Exchange 2003 calendar.

[enak]

I have an application that I use WebDAV to create calendar appointments and then send them out to the invitees. This works but when the invitee receives the invitation they must drag the appointment to their calendar in order for it to get set.

I want to be able to set the appointment for them, without sending an email. Can this be done?

The server is Exchange 2003.
The client is Outlook 2003.
The application is asp.net with VB as the code behind language.

I need to know so please respond.

Thanks,
enak