http://bugs.winehq.org/show_bug.cgi?id=29862
--- Comment #4 from GyB gyebro69@gmail.com 2012-02-13 12:43:43 CST --- (In reply to comment #3)
Try setting inetcomm to builtin in winecfg.
'winetricks ie7' doesn't install native inetcomm.dll so this override does nothing here.