tag for access outlook add new contact page from html/aspx

Like the "mailto:" keyword in hyperlink (this opens clients outlook's email sending page (window)), what should be the k开发者_如何学运维eyword or tag for open the cleint's outlook's add new contact's window from html ?

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There is no such keyword. The mailto: is a defined standard to open the client's default E-Mail application. There is nothing similar related to the local contacts list.

This may be possible in Internet Explorer using proprietary VBScript and specific security settings - but it also may not.