[Evolution] opening new mailto: link

["Cristóvão B. B. Dalla Costa" <cbraga fs inf br>]

Hello

How can I invoke Evolution to open a new mail message window? 
Preferably, with the address, body and subject that I specify?

Also, is it possible to invoke evolution in such a way that if it's 
already open it won't open a duplicate window?

Thanks in advance,

Cristovao