update/delete/rename appointments of contacts with WebDAV

[Marcin Krzyzanowski]

Is there a way to update appointments contact using WebDAV ?

I would update property: 
http://schemas.microsoft.com/mapi/id/{00062008-0000-0000-C000-000000000046}/0x8586

but this doesn't work at all, I can read it, but can't set it, or delete it.

I fould some questions about hat but without answer, maybe somebody have 
 exaple how to deal with these fields ?

I found:
                                groups.google.si/group/microsoft.public.exchange.admin/browse_thread/thread/7b1fb1719affa4d3/a45c1c5ce161d3b4?lnk=st&q=x800e001e&rnum=1&hl=sl#a45c1c5ce161d3b4">http://groups.google.si/group/microsoft.public.exchange.admin/browse_thread/thread/7b1fb1719affa4d3/a45c1c5ce161d3b4?lnk=st&q=x800e001e&rnum=1&hl=sl#a45c1c5ce161d3b4

but it just make it stranger :)

Regards.