subclipse 0.9.3

if you continue to have issues with the update site, go to help->software 
update->manage configurations and ensure that you are free of red x's. If  
you (like me) are infested with red x's in important places, remove your 
eclipse instance, delete your workspace metadata (sorry), configuration, and 
anything else you suspect, and re-install.  these (admittedly drastic) steps 
did the trick for me.

again, the update site is at http://www.loonsoft.com/updates

なので再インストール。
Windows版が動くようになった。Great!!!