Alfred Version 2.0.8
I am running Windows in Parallels on a Mac running OS X 10.8.4.
I have 1Password (Mac) and 1Password (Windows) installed. In Parallels, I have "Share Windows applications with Mac" enabled such that my windows apps are accessible to run directly from the mac.
Alfred is detecting my Parallels - Windows version of 1Password and using the icon from that instance of 1Password. Thus in Alfred and all search, it indicates that the link will be opened in parallels. It does still correctly launches the URL on the Mac OS, but does not automatically launch the password prompt after my browser is opened. That may be a 1Password issue.
I have screen shots showing the incorrect icon in Alfred as well as the configuration in parallels that shares the windows applications with mac if that would be useful and there is a way to upload then.