I'm too awaiting for a newer patch for its full support to windows 7 that will be release on 22Oct2009.
Currently we are running 8.5i P7 but unfortunately it doesn't support win7, we have tested all our running applications with win7RC but only antivirus that did not pass. Even with 8.7i P1, McShield service still paused by itself when PC restarted.
https://kc.mcafee.com/corporate/index?page=content&id=KB60468 this article shows 8.7i supports win7 beta with some limitations but as they Updated 5/21/2009, there is still no improvement for win7RC support. :(:(