Is it still not possible to make Zimbra the default mail client in Windows? I'm running Windows Vista Ultimate, 32-bit and I don't see any way to do this -- Zimbra's own option to make it the default mail client is grayed out, as has been noted in other posts. What gets me is how can people (or developers) tout something as a replacement, or even an alternative to Outlook, when you can't even make it the defaut mail program, thereby making it useless in a variety of scenarios?

If there is a fix in the works, does anyone have any idea when the next version of Zimbra will be available?