I embed a font in Internet Explorer with @font-face and it works, but does not smooth out. How to enable rendering smoothing for embedded fonts in IE?
@font-face
If the problem is related to IE 7/8, then this article may be helpful.
There are some known issues that you can work with. If you embed any code or download and link it, maybe someone can indicate what the problem is.
(Can't just comment, gj SO: p)