XMPPContact Object

Expand	Expands or collapse contact's tree.
Notify	Sends notification to the contact.
SendMessage	Sends message to the contact.
Subscribe	Subscribes contact to our contact list.
Unsubscribe	Unsubscribes contact from our contact list.

Affiliation	Holds contact's affiliation.
Alias	Points to real contact on your contact list.
Capabilities	Holds list of capabilities supported by the contact.
Features	Returns contact features list.
Group	Holds name of the group for the contact.
JID	Holds full ID of the contact.
Name	Holds Name part of the JID.
Nick	Holds nickname of the contact.
Picture	Returns or sets a picture to be displayed for the contact.
Priority	Holds contact's priority.
Resource	Holds name of the resource.
Role	Holds role of the contact.
ServerName	Holds name of the server contact uses.
Status	Holds contact's status.
StatusText	Returns text representation of contact's status.
Subscription	Holds subscription information
Tag	Tag for misc usage.
VCard	Holds VCard for contact's personal details.

Windows

wodXMPP help - XMPPContact