Host: Debian GNU/Linux
Guest: Windows XP
Read the user manual on Folder sharing section.
- Install Guest Additions (Devices > Install Guest Additions)
- Click on folder icon on the bottom of the VirtualBox
- Create a new shared folder: select a directory on Host and choose a name (e.g. my_shared_folder)
- On a command shell (cmd) type this command
net use x: \\vboxsrv\my_shared_folder
Where x: is a free device letter.