We get the Message on SharePoint 2013 Online Preview @ "open in explorer" click on libraries:
"Your client does not support opening this list with Windows Explorer"
Resolution:
1. You do not have Web Client service running.
2. You are using 64 bit version IE.
3. You have installed 64 bit of office.
Refer to post:
· http://blogs.technet.com/b/meamcs/archive/2012/05/01/how-to-add-desktop-experience-feature-on-windows-server-8-beta.aspx
