Windings Font ignored during PDF to word Export

Hi,

when i try to export a PDF with Acrobat XI to word or to RTF format the Windings and Webdings fonts are allways ignored.

The Character itself gets exported, but it as "Times Roman". All other fonts works fine, but I need the squares from Windings.

The PDF check shows that the font is include. And the font is active on my maschine.

I'm using a OS X 10.8.3.

Any ideas?