Mirrored folders allow the Mac and the virtual machine to see the same content in certain personal data folders.
For example:
The mirrored content resides on the Mac so that it is accessible even when the virtual machine is off. Mirrored folders work by redirecting where Windows looks for certain user folders (Desktop, Documents, Music, Pictures, Movies, and Downloads) from their default Windows locations to the corresponding locations on the Mac. It does this by means of registry redirects (much like Group Policy can redirect user folders to a network location).
Mirrored folders allows Windows virtual machine to treat the Mac's Desktop, Documents, Music, Pictures, Movies, and Downloads folders as its own; it does not, however, let the Mac see the Windows default Desktop, My Documents, My Music, My Pictures, My Movies, or Downloads folders, and the Mac never has access to data saved on the Windows computer.
Note: Mirrored folders are not available in a Boot Camp virtual machine, since the Mac folders are not available when booted natively in Boot Camp. For more information about Boot Camp and Fusion, see Working with VMware Fusion and Boot Camp partitions.
About shortcuts and aliases in a mirrored folder environment
Shortcuts and aliases which are created on the Desktop will only work if opened from the corresponding operating system which knows how to handle that file type.
For example, a Mac application alias created on the Mac Desktop will be mirrored on the Windows Desktop (if the Desktop is mirrored). But if attempting to open it from within Windows, Windows does not know how to handle the file because it does not recognize the file type.
Similarly, if a shortcut for a Windows application is created on the Windows Desktop, it also appears on the Mac Desktop. However, if attempting to open it from the Mac side, it does not work because the Mac does not know how to handle a Windows shortcut.
In these situations, the files eventually become unusable. Therefore, the best practice is to avoid creating shortcuts or aliases on either Desktop so that the Desktop does not become cluttered with unusable files.
To configure a mirrored folder in a virtual machine:
Warning: Any data currently occupying a folder in the virtual machine prior to mirroring becomes unavailable after following these steps. Be sure to move this data to another location in the virtual machine or to the Mac before proceeding.
Note: Ensure that VMware tools is installed on the virtual machine. For more information, see Overview of VMware Tools for VMware Fusion
If errors are encountered with mirrored folders, or if unable to access the Mac folders from Windows, try each of these steps. After each step, reverse the actions to see if the problem has been resolved.
Note: Restart the virtual machine after each step.
Any files in the Windows folders before mirroring is started are not overwritten by mirroring. They remain present in their original location, typically located in the appropriate subfolder of C:\Documents and Settings\username for Windows XP, and C:\Users\username for Windows Vista, Windows 7, and Windows 8.