I have created linux (Centos) on my virtual box. When I ssh to it and I try to create symbolic link (on my shared folder with full access):
ln -s path/folder/exa
As I understand, Windows VirtualBox hosts doesn't support links (from https://www.virtualbox.org/manual/ch04.html#sharedfolders)
Starting with version 4.0, VirtualBox shared folders also support symbolic links (symlinks), under the following conditions:
The host operating system must support symlinks (i.e. a Mac, Linux or Solaris host is required).
Currently only Linux and Solaris Guest Additions support symlinks.
For security reasons the guest OS is not allowed to create symlinks by default. If you trust the guest OS to not abuse the functionality, you can enable creation of symlinks for "sharename" with:
VBoxManage setextradata "VM name" VBoxInternal2/SharedFoldersEnableSymlinksCreate/sharename 1