I'm encountering some problem adding by code users from another domain (in my farm I have trust for 2 domain). If I use People Picker, everything goes fine... So I ask u.. It's possible to create an http request like the one called by poeple picker? Something like:
HTTP 1.1 POST /sites/MySite/_layouts/aclinv.aspx?GroupId=147&IsDlg=1 HTTP/1.1 , NTLMSSP_NEGOTIATE
How can i do to repropose this scenario? Thank you very much!