title: Your client does not support opening this list with Windows Explorer
body: <p>I installed Microsoft SharePoint and Project PWA on Windows Server 2008 R2.</p>
  
  <p>When I want to open Library in Windows Explorer, I randomly get an error:
  <strong>Your client does not support opening this list with Windows Explorer</strong></p>
  
  <p>When I open IE it's working for 1st and 2nd time, but after some clicks it's not working anymore and I need to restart IE and then it normally works for couple of times.
  When it not working through Sharepoint it also not works via \server\DavWWWRoot\PWA and oposite.</p>
  
  <p>I'm searching through the web for weeks and didn't find any solution. 
  Do you have any idea what should be wrong here. Any suggestion is welcome :)</p>