Then go to security and make sure you select 'PPTP' and 'encrypment necessary'. In 'Network and sharing centre' click on 'Change adapter settings' again. And complete the wizard without further changes. Also make sure this is the external adress, you can look it up with a website like. Make sure this adress is permanent (if not, you should set up a DNS and use that as the adress). Next enter the IP-adress on which the server can be found.

Then click on 'Use my Internet connection (VPN)'. Select 'Connect to a workplace' and click next. On your Windows RT device go to 'Network and sharing centre' and click on 'Set up an new connection or network'. Now we are going to let the Windows RT device connect with the VPN: See your router manual for your portforwarding settings. Next you want to make sure that your router will forward port 1723 (from the internet) to port 1723 on your server. The steps are shown in the screenshots below: In the new screen press the ALT-key and then select 'New Incoming Connection.' A wizard will guide you through the installation (select users (these users must have read/write access to the Dropbox folder), check 'through the Internet', check IPv4 (and IPv6 if you use it)). Go to 'Network and sharing centre' and click on 'Change adapter settings'. You set up a VPN server on your host computer like this: In the same way as you would on a full Windows computer Now you can open and save all your documents straight in the Dropbox folder on your server.You connect your Microsoft Windows RT device with this VPN server.Make sure that you portforward port 1723 to your VPN server in your router.on this computer you install a VPN server (comes standard in newer versions of Windows).You have a Server (a simple computer will suffice, just as long you can install Dropbox on it).The capability to connect this computer through a VPN.A 24/7 active computer with Dropbox installed (In my description I will use Windows Server 2008 R2).Both storagecapabilities have to be equally large.Use this guide to sync your Dropbox storage with your Skydrive storage.Skydrive is fully integrated in Windows 8.1RT, sadly it lacks a lot of options standard in Dropbox as well as reliability. In my search for solutions I found other options (of which nether satisfied me): Therefor you can't save or open something directly on your Dropbox drive, you have to download it and then open it, edit it and finally upload it. Windows RT doesn't allow for full integration of Dropbox like Windows 8(.1).

Install dropbox windows server 2008